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CBSE Class 9 Free Doubts and Solutions

CBSE - IX - Civics

Explain any three restrictions on the right to freedom of religion .  

Asked by pkyadav122202 14th November 2018, 11:40 PM
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CBSE - IX - Mathematics

If P equals 2 square root of 7 minus 3 square root of 3 space and Q equals space 1 over P , then find the value of P to the power of 4 minus Q to the power of 4

A) 2110 square root of 3

B)negative 1440 square root of 7

C) 2210 square root of 7

D) negative 2640 square root of 21

Asked by adalroshan2464 14th November 2018, 6:26 PM
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CBSE - IX - Mathematics

If fraction numerator square root of square root of square root of square root of 5 plus 2 to the power of x end root end root end root end root over denominator 2 to the power of x minus 1 end fraction equals 1 over 3 to the power of begin display style bevelled 7 over 8 end style end exponent, then find the value of x.

A) 4

B) 1

C) 2

D)3 

Asked by adalroshan2464 14th November 2018, 6:16 PM
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CBSE - IX - Mathematics

If 2 to the power of 3 n end exponent over 8 plus 1 plus 3 cross times 2 to the power of n over 2 plus 3 cross times 2 to the power of 2 n end exponent over 4 equals 4913
, then find the value of n.

A) 3

B)10

C) 5

D) 8

 

Asked by adalroshan2464 14th November 2018, 5:59 PM
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CBSE - IX - Mathematics

If pqr=1, then find the value of 

open parentheses fraction numerator 1 over denominator 1 plus p plus q to the power of negative 1 end exponent end fraction plus fraction numerator 1 over denominator 1 plus q plus r to the power of negative 1 end exponent end fraction plus fraction numerator 1 over denominator 1 plus r plus p to the power of negative 1 end exponent end fraction close parentheses

A) pq+qr+rp

B) 1

C) pq+qr

D) bevelled fraction numerator p over denominator q space space end fraction

Asked by adalroshan2464 14th November 2018, 5:49 PM
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CBSE - IX - Mathematics

Simplify:  left parenthesis square root of 20 space plus square root of 1125 minus square root of 567 right parenthesis left parenthesis square root of 500 plus square root of 245 plus 9 square root of 7 right parenthesis end root

A) 2012

B) 878

C)1445

D) 567

Asked by adalroshan2464 14th November 2018, 5:41 PM
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CBSE - IX - History

Who were the Indian Kings and rulers who resisted the Mughal power in India and what role did they play?

Asked by Adarshbramhe333 14th November 2018, 3:30 PM
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CBSE - IX - Physics

What can I do to get a topper rank

Asked by Satyanarayanaanisingaraju48 13th November 2018, 7:08 PM
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CBSE - IX - Physics

What is atomicity

Asked by Satyanarayanaanisingaraju48 13th November 2018, 6:55 PM
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