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Let `f : R to R` be a function defined by `f (x + y) = f (x).f (y) and f (x) ne 0` for andy `x. If f '(0)` exists, show that `f '(x) = f (x). F'(0) AA x in R if f '(0) = log 2` find `f (x).`

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The correct Answer is:
`f (x)= 2 ^(x)`
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AAKASH SERIES-DIFFERENTIATION -ADVANCED SUBJECTIVE TYPE QUESTIONS
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