a function f : R R satisfies the following conditions- 1. f(x) 0 for any x R 2. f(x+y) = f(x).f(y) for all x,y in R 3. f(x)is differentiable 4. f ' (0) = 2 (f dash zero equals 2)
f(x) - f(-x) then [x][0]----------------- is x
a) 1 b) 2 c) 3 d) 4
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R satisfies the following conditions-
0 for any x 
R 2. f(x+y) = f(x).f(y) for all x,y in R
[0] 
1
[0] {f(x) - f(-x)}/x = [x]
[0] {f('x) + f'(-x)} = {f'(0) + f(-0)}
