Fundamentholfundamenthol
JEE Main2019Math
Q.

Let f(x) = ax (a > 0) be written as f(x) = f1(x) + f2(x), where f1(x) is an even function and f2(x) is an odd function. Then f1(x + y) + f1(x – y) equals :

  1. A

    2f1(x)f1(y) 

  2. B

    2f1(x + y)f1(x – y) 

  3. C

    2f1(x + y)f2(x – y) 

  4. D

    2f1(x)f2(y) 

Solution

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