# Irrational Numbers Free Doubts and Solutions

### CBSE - IX - Mathematics - Number System

If and , then find the value of

A)

B)

C)

D)

**adalroshan2464**14th November 2018, 6:26 PM

### CBSE - IX - Mathematics - Number System

If pqr=1, then find the value of

A) pq+qr+rp

B) 1

C) pq+qr

D)

**adalroshan2464**14th November 2018, 5:49 PM

### CBSE - IX - Mathematics - Number System

Simplify:

A) 2012

B) 878

C)1445

D) 567

**adalroshan2464**14th November 2018, 5:41 PM

### CBSE - IX - Mathematics - Number System

## Evaluate root10*root15

**Muruga**8th March 2018, 3:35 PM

### CBSE - IX - Mathematics - Number System

## Find the square root:14+6√5

**ashutoshtaparia53**27th February 2018, 9:50 PM

### CBSE - IX - Mathematics - Number System

## Show root 5 and 7 on number lili

**ayushraj0911**9th February 2018, 7:37 PM

### CBSE - IX - Mathematics - Number System

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

**ABHILASHA**21st January 2018, 9:29 PM

### 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

**aahnik.mohanty**27th November 2017, 8:09 PM

### CBSE - IX - Mathematics - Number System

_{Identify whether is a rational or an irrational number.}

_{Identify whether is a rational or an irrational number.}

**Topperlearning User**28th July 2017, 9:06 AM

### CBSE - IX - Mathematics - Number System

Identify the following as rational or irrational.

**Topperlearning User**28th July 2017, 9:04 AM

### CBSE - IX - Mathematics - Number System

## Identify the following as rational or irrational. Give the decimal representation of the number:

**Topperlearning User**28th July 2017, 9:03 AM

### CBSE - IX - Mathematics - Number System

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

**Topperlearning User**28th July 2017, 8:57 AM

### CBSE - IX - Mathematics - Number System

## Find one irrational number between 3 and 4.

**Topperlearning User**28th July 2017, 8:56 AM

### CBSE - IX - Mathematics - Number System

## Please answer given question

**Topperlearning User**28th July 2017, 8:56 AM

### CBSE - IX - Mathematics - Number System

## Find an irrational number between and

**Topperlearning User**28th July 2017, 8:55 AM

### CBSE - IX - Mathematics - Number System

## <div style="text-align: left;">find 'a' and 'b' if 5+2<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=18d0e52c351a213b87661c3117a37b6e.png" alt="square root of 3" align="middle" />/7+4<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=74947967fcfbca2728c14fa4ff7462e5.png" alt="square root of 3 " align="middle" />=a+b<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=74947967fcfbca2728c14fa4ff7462e5.png" alt="square root of 3 " align="middle" /></div>

**piyush**8th July 2017, 10:14 AM

### CBSE - IX - Mathematics - Number System

## <div><img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=d3c7a321d208a57cad504f39247e24e7.png" alt="square root of 3 plus 2 square root of 2 space end root space t h e space w h o l e space r o o t" align="middle" /> </div> <div><strong>how do you do a sum having root inside a root ?</strong></div>

**meghanavincent25**23rd June 2017, 9:10 PM

### CBSE - IX - Mathematics - Number System

## What are irrational number

**motihari**17th June 2017, 7:31 AM

### CBSE - IX - Mathematics - Number System

## <div><strong>SOLVE THIS : if a =2 + <img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=18d0e52c351a213b87661c3117a37b6e.png" alt="square root of 3" align="middle" /> then find <img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=7c3cefde51d7c7c18846d35e15841e6d.png" alt="square root of a" align="middle" /> + 1 by <img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=7c3cefde51d7c7c18846d35e15841e6d.png" alt="square root of a" align="middle" /></strong></div> <div> </div> <div> </div>

**meghanavincent25**14th June 2017, 6:32 PM

### CBSE - IX - Mathematics - Number System

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

**ABHILASHA**14th April 2017, 8:09 PM

### CBSE - IX - Mathematics - Number System

## how to irrational numbers on numberline

**Nageshwar**30th March 2017, 6:54 PM

### CBSE - IX - Mathematics - Number System

## Give reason why 3.2576 is a rational number

**Aditya Kumar**20th March 2017, 10:38 AM

### CBSE - IX - Mathematics - Number System

## <div>Show that <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 - 3 is irrational</div>

**gpnkumar0**5th September 2016, 8:55 PM

### CBSE - IX - Mathematics - Number System

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

**Aashna**25th May 2016, 8:24 PM

### CBSE - IX - Mathematics - Number System

## <div>Simplify: <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>

**Nandish**7th May 2016, 6:35 PM

### CBSE - IX - Mathematics - Number System

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

**Crystal**5th April 2016, 8:56 PM

### CBSE - IX - Mathematics - Number System

## sum of two irrational numbers whose product is a rational number

**sanjeev.mami**30th September 2015, 8:32 PM

### CBSE - IX - Mathematics - Number System

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

**prakritiprakash12**7th June 2015, 8:05 AM

### CBSE - IX - Mathematics - Number System

## <div>if x= 1/2-<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=18d0e52c351a213b87661c3117a37b6e.png" alt="square root of 3" align="middle" /> then find the value of <img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=19bf94290971c371875e83c808999c0d.png" alt="x cubed" align="middle" />- 2<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=6ab053eb77594dfda3fccfc8db9f9c73.png" alt="x squared" align="middle" />- 7x + 5</div>

**Petulla Mishra**18th May 2015, 5:29 PM

### CBSE - IX - Mathematics - Number System

## <div>if x = <img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=cb96f974df57e4bf8d8a520f85df3ad8.png" alt="square root of 3 space end root" align="middle" />+ 1 /2 then find the value of 4<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=19bf94290971c371875e83c808999c0d.png" alt="x cubed" align="middle" /> + 2<img class="Wirisformula" src="https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=6ab053eb77594dfda3fccfc8db9f9c73.png" alt="x squared" align="middle" />- 8x + 7</div>

**Petulla Mishra**18th May 2015, 9:38 AM

### 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 '<mstyle '." align="middle" /></div>

**deepa1973**14th September 2014, 2:18 PM

### CBSE - IX - Mathematics - Number System

## what are surds?

**kaushal_012**30th August 2014, 8:49 PM

### CBSE - IX - Mathematics - Number System

## solve:
1/(√3+√5-√7)

1/(√3+√5-√7)

**rkjha_in**21st August 2014, 8:32 PM

### CBSE - IX - Mathematics - Number System

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

**Shashank.bala**8th August 2014, 7:51 AM

### CBSE - IX - Mathematics - Number System

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

**Ayan**28th July 2014, 3:51 PM

### 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" /> solve</div>

**deeptisingh25**28th June 2014, 3:45 PM

### 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

**Prachi Jha**23rd June 2014, 9:50 PM

### 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

**Prachi Jha**21st June 2014, 3:39 PM

### CBSE - IX - Mathematics - Number System

## Evaluate

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Number System

## Find two rational numbers between and .

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Number System

## Find three rational numbers between 1 and 3.

**Topperlearning User**4th June 2014, 1:23 PM

### CBSE - IX - Mathematics - Number System

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

**Prachi Jha**10th May 2014, 7:43 PM