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If intsqrt(1+sinx)f(x)dx=2/3(1+sinx)^(3/...

If `intsqrt(1+sinx)f(x)dx=2/3(1+sinx)^(3/2)+c ,t h e nf(x)e q u a l` `cosx` (b) `sinx` (c) `tanx` (d) 1

A

`cos x`

B

`sin x`

C

`tan x`

D

`1`

Text Solution

Verified by Experts

The correct Answer is:
A
`" Differentiating both sides, we get "`
` sqrt(1+sinx)f(x)=(2)/(3)(3)/(2)(1+sinx)^(1//2)cosx`
`"or "f(x)=cosx`
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CENGAGE PUBLICATION-INDEFINITE INTEGRATION-EXERCISES (Single Correct Answer Type)
  1. int sqrt(1+sinx)dx " is equal to "

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  2. Evaluate: int((3sinx-2)cosx)/(5-cos^2x-4sinx)dx

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  3. If intsqrt(1+sinx)f(x)dx=2/3(1+sinx)^(3/2)+c ,t h e nf(x)e q u a l co...

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  4. int(sqrt(x-1))/(xsqrt(x+1))dx is e q u a l to ln|x-sqrt(x^...

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  5. IfI=int(dx)/(secx+cos e cx),t h e nIe q u a l s

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  6. int(sinx)/(sin(x-(pi)/(4)))dx " is equal to "

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  7. Prove that, int(cos 5x + cos4x)/(1-2cos 3x)dx= -(1/2 sin2x + sinx)+c

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  8. IfI=intsqrt((5-x)/(2+x))dx ,t h e nIe q u a l sqrt(x+2)sqrt(5+x)+3si...

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  9. int(sin2x)/(sin5xsin3x)dx is equal to

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  10. int(dx)/(x(x^n+1)) is equal to

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  11. Evaluate:int (dx)/(sqrt (sin^3 xsin(x+alpha)

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  12. int (px^(p+2q-1)-qx^(q-1))/(x^(2p+2q)+2x^(p+q)+1) dx is equal to (1...

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  13. If y=int1/(1+x^2)^(3/2)dx and y=0 when x=0 , then value of y when x=1 ...

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  14. int sqrt(x)(1+x^(1//3))^(4)dx " is equal to "

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  15. int(In(tanx))/(sinx cosx)dx " is equal to "

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  16. If m is a non-zero number and int (x^(5m-1)+2x^(4m-1))/(x^(2m)+x^m+1)^...

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  17. If l^r(x) means logloglog...... x , the log being repeated r times, th...

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  18. Evaluate: int (sqrt(tanx)+sqrtcotx)dx

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  19. IfI=int(sin2x)/((3+4cosx)^3)dx ,t h e nIe q u a l s (3cosx+8)/((3+4co...

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  20. int(ln((x-1)/(x+1)))/(x^2-1)dxi se q u a lto 1/2(ln((x-1)/(x+1)))^2+...

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