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If y=sin ^(-1) ((2^(x+1))/( 1+4^(x))),t...

If ` y=sin ^(-1) ((2^(x+1))/( 1+4^(x))),then (dy)/(dx) =`

A

`(2^(x))/(1+4^(x))log2`

B

`(4^(x-1))/(1+4^(x))log2`

C

`(2^(x))/(1+2^(x))log2`

D

`(2^(x+1))/(1+4^(x))log2`

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EDUCART PUBLICATION-SAMPLE PAPER 09-SECTIONS-B
  1. If y=sin ^(-1) ((2^(x+1))/( 1+4^(x))),then (dy)/(dx) =

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  2. The feasible region of a sytem of linear inequations is shown below. I...

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  3. The function f(x)=x^(2)-x+1 is :

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  4. If A^(-1)=[(0,1,-2),(-2,9,-23),(-1,5,-13)],B^(T)=[11-5-3] and X=A^(-1)...

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  5. Let A={1,2,3,......,} and the relation R defined as (a, b) R (c,d) if ...

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  6. The value of sin((pi)/(2)+2sin^(-1)(1)) is:

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  7. If A is a square matrix of order n×n such that find the value of |5Aa...

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  8. The values of a and b if the function f(x)={{:(x^(2)+3x+a",",xle1),(bx...

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  9. If e^(v)+e^(u)=e^(v+u), then (du)/(dv)=

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  10. The corner points of a feasible region determined by a system of linea...

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  11. The function f:(-oo,0)to(-1,0) defined by f(x)=(x)/(1+|x|) is :

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  12. The principal value of sec^(-1)(-(2)/(sqrt3)) is :

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  13. If [(a+4,3b),(8,-6)]=[(2a+2,b+2),(8,a-8b)], the the respective values ...

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  14. If A is a square matrix of order 3 such that |adjA|=64, then the value...

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  15. Which of the following functions is decreasing on (0,(pi)/(2))?

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  16. The local maximum value of the function f(x)=((x-1)(x-6))/(x-10) is:

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  17. If |A|=|(a,4),(4,a)| and |A^(3)|=729, then the value of a is :

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  18. If y=10^(10^(x)) then (dy)/(dx) is :

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  19. Asha and Kiran went to a market to buy some stationary. Asha bought 5 ...

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