Let f(x)=|(cos x,e^(x^2) , 2x cos^2x/2),...

Let `f(x)=|(cos x,e^(x^2) , 2x cos^2x/2),(x^2, sec x, sinx+x^3),(1,2,x+tan x)|` then the value of `int_(-pi/2)^(pi/2)(x^2+1)(f(x)+f''(x))dx `

A

(a)1

B

(b)`-1`

C

(c)2

D

(d)None of these

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The correct Answer is:

D

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