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Irrational Numbers Free Doubts and Solutions

CBSE - IX - Mathematics - Number System

Evaluate root10*root15

Asked by Muruga 8th March 2018, 3:35 PM
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CBSE - IX - Mathematics - Number System

Find the square root:14+6√5  

Asked by ashutoshtaparia53 27th February 2018, 9:50 PM
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CBSE - IX - Mathematics - Number System

Show root 5 and 7 on number lili 

Asked by ayushraj0911 9th February 2018, 7:37 PM
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CBSE - IX - Mathematics - Number System

If√2=1.4142,then find the value of√√2-1/√2+1

Asked by ABHILASHA 21st January 2018, 9:29 PM
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CBSE - IX - Mathematics - Number System

Asked by Topperlearning User 15th January 2018, 3:09 PM
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CBSE - IX - Mathematics - Number System

Which of the following surds is greatest in magnitude?
sixth root of 17, root 2, twelfth root of 25, cube root of 4

Asked by aahnik.mohanty 27th November 2017, 8:09 PM
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CBSE - IX - Mathematics - Number System


Identify whether is a rational or an irrational number.

Asked by Topperlearning User 28th July 2017, 9:06 AM
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CBSE - IX - Mathematics - Number System

Asked by Topperlearning User 28th July 2017, 9:06 AM
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CBSE - IX - Mathematics - Number System

Asked by Topperlearning User 28th July 2017, 9:05 AM
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CBSE - IX - Mathematics - Number System

Identify the following as rational or irrational.

  begin mathsize 12px style square root of 9 over 27 end root end style

Asked by Topperlearning User 28th July 2017, 9:04 AM
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CBSE - IX - Mathematics - Number System

Identify the following as rational or irrational. Give the decimal representation of the number: begin mathsize 12px style 3 square root of 18 end style

Asked by Topperlearning User 28th July 2017, 9:03 AM
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CBSE - IX - Mathematics - Number System

Show that the irrational numbers and lie between 2 and 3.

Asked by Topperlearning User 28th July 2017, 8:57 AM
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CBSE - IX - Mathematics - Number System

Find one irrational number between 3 and 4.

Asked by Topperlearning User 28th July 2017, 8:56 AM
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CBSE - IX - Mathematics - Number System

Please answer given question

Asked by Topperlearning User 28th July 2017, 8:56 AM
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CBSE - IX - Mathematics - Number System

Find an irrational number between begin mathsize 12px style 1 over 7 end style and begin mathsize 12px style 2 over 7 end style

Asked by Topperlearning User 28th July 2017, 8:55 AM
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CBSE - IX - Mathematics - Number System

What are irrational number

Asked by motihari 17th June 2017, 7:31 AM
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CBSE - IX - Mathematics - Number System

Express 0.999......in the form of p/q.why the answer makes sense .
 

Asked by ABHILASHA 14th April 2017, 8:09 PM
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CBSE - IX - Mathematics - Number System

how to irrational numbers on numberline
 

Asked by Nageshwar 30th March 2017, 6:54 PM
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CBSE - IX - Mathematics - Number System

Give reason why 3.2576 is a rational number

Asked by Aditya Kumar 20th March 2017, 10:38 AM
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CBSE - IX - Mathematics - Number System

<div>Show that&nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />7 - &nbsp;3 is irrational</div>

Asked by gpnkumar0 5th September 2016, 8:55 PM
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CBSE - IX - Mathematics - Number System

5+root 11/3+2 root 11=a+(b root 11)

Asked by Aashna 25th May 2016, 8:24 PM
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CBSE - IX - Mathematics - Number System

<div>Simplify: &nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=79a4a7e537c7806079ff97c9611c21e7.png" alt="square root of 3 plus 2 square root of 2 end root" align="middle" /></div>

Asked by Nandish 7th May 2016, 6:35 PM
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CBSE - IX - Mathematics - Number System

sir, how to represent many irrational numbers on the same number line?
 

Asked by Crystal 5th April 2016, 8:56 PM
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CBSE - IX - Mathematics - Number System

sum of two irrational numbers whose product is a rational number

Asked by sanjeev.mami 30th September 2015, 8:32 PM
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CBSE - IX - Mathematics - Number System

<div>I want to know that how&nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=0e03aee651ebc79d708627d9a16b6710.png" alt="pi" align="middle" />&nbsp;is irrational and 22/7 is rational ?</div>

Asked by prakritiprakash12 7th June 2015, 8:05 AM
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CBSE - IX - Mathematics - Number System

<div><img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=11fbc5418594b8a1f62d66f4211f2c19.png" alt="Syntax error from line 1 column 49 to line 1 column 73. Unexpected '&lt;mstyle '." align="middle" /></div>

Asked by deepa1973 14th September 2014, 2:18 PM
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CBSE - IX - Mathematics - Number System

what are surds?
 
 

Asked by kaushal_012 30th August 2014, 8:49 PM
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CBSE - IX - Mathematics - Number System

solve:

1/(√3+√5-√7)

Asked by rkjha_in 21st August 2014, 8:32 PM
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CBSE - IX - Mathematics - Number System

Instead of dividing and finding the r nos between  we can multiply it and find out 

Asked by Shashank.bala 8th August 2014, 7:51 AM
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CBSE - IX - Mathematics - Number System

sum of irrational number & rational number needn't be a irrational number.

Asked by Ayan 28th July 2014, 3:51 PM
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CBSE - IX - Mathematics - Number System

<div> <ul> <li>evalute&nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />5<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=6970a2e8d126b43aace4050761d91989.png" alt="plus" align="middle" />2<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />6 first sq root for allthe nos, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; here i splited 5 in to 2 and 3 since 3<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=c0c48ee878456ca4bd03e7b260cecd15.png" alt="cross times" align="middle" />2=6 and expression became&nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />3+2+2<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />3<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=c0c48ee878456ca4bd03e7b260cecd15.png" alt="cross times" align="middle" />2 again first sq root s for all the nos.,then this expression becomes whole sq root of<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />3+<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />2 using (a+b)whole square but since a+b s possitive addn s commutative it s possible when it s (a-b) whole sq i.d how we ll decide which no. has to be taken first</li> </ul> </div>

Asked by vijayalqakshmi muralidhar 22nd July 2014, 1:14 PM
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CBSE - IX - Mathematics - Number System

<div> <ul> <li>evalute&nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />5<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=6970a2e8d126b43aace4050761d91989.png" alt="plus" align="middle" />2<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />6 first sq root for allthe nos, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; here i splited 5 in to 2 and 3 since 3<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=c0c48ee878456ca4bd03e7b260cecd15.png" alt="cross times" align="middle" />2=6 and expression became&nbsp;<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />3+2+2<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />3<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=c0c48ee878456ca4bd03e7b260cecd15.png" alt="cross times" align="middle" />2 again first sq root s for all the nos.,then this expression becomes whole sq root of<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />3+<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=e6d11f972eb8fb291df0894a6727155e.png" alt="square root of blank end root" align="middle" />2 using (a+b)whole square but since a+b s possitive addn s commutative it s possible when it s (a-b) whole sq i.d how we ll decide which no. has to be taken first</li> </ul> </div>

Asked by vijayalqakshmi muralidhar 22nd July 2014, 1:14 PM
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CBSE - IX - Mathematics - Number System

<div><img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=0bcb26efa57f107f8f5b75e8cf81a087.png" alt="square root of 125 space divided by square root of 5 end root" align="middle" />&nbsp;solve</div>

Asked by deeptisingh25 28th June 2014, 3:45 PM
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CBSE - IX - Mathematics - Number System

simply question no. 6 of VSAQs of cce formative assesment of chapter no. third, pg no3.16 of RD SHARMA
 

Asked by Prachi Jha 23rd June 2014, 9:50 PM
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CBSE - IX - Mathematics - Number System

can u plz explain me how sum no 11 of RD SHARMA page no3.15 how it can be solved

Asked by Prachi Jha 21st June 2014, 3:39 PM
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CBSE - IX - Mathematics - Number System

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Number System

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Number System

Evaluate

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Number System

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Number System

Find two rational numbers between and .

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Number System

Find three rational numbers between 1 and 3.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Number System

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - IX - Mathematics - Number System

how can i prove that  root 7 is an irrational no with method

 

Asked by Prachi Jha 10th May 2014, 7:43 PM
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