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Questions  

 If f:RR is even function which is twice differentiable on R and f11(π)=1 then f11π is

a
-1
b
0
c
1
d
2

detailed solution

Correct option is C

Given f:R→R is an even function f1(x) is an odd function  Hence f11(x) is even f11(−π)=f11(π)=1

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