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If f(x+y)=f(x) xx f(y) for all x,y in R ...

If `f(x+y)=f(x) xx f(y)` for all `x,y in R` and` f(5)=2, f'(0)=3, then f'(5)=`

A

6

B

3

C

5

D

None of these

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OBJECTIVE RD SHARMA-CONTINUITY AND DIFFERENTIABILITY-Exercise
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  18. If f(x)=(e^(2x) - (1+4x)^(1//2))/(ln(1-x^2)) for x != 0, then f has

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  19. Let f(x)={{:(,(e^(x^2)-(2)/(pi)sin^(-1)sqrt(1-x))/(In(1+sqrtx)),x in (...

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  20. Let f(x)={{:(,x^(3),x lt 1),(,ax^(2)+bx+c,:x ge 1):}. If f''(1) exists...

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