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f(x) is real valued function, satisfying...

f(x) is real valued function, satisfying `f(x+y)+f(x-y)=2f(X),f(y) for all y ne R`, then

A

f(x) is an even function

B

f(x) is even if f(0) =1

C

f(x) is odd if f(0)=0

D

f(x) is even if f(0)=0

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The correct Answer is:
B, C
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PATHFINDER-FUNCTION-QUESTION BANK
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