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Let f be a real valued function, satisfy...

Let f be a real valued function, satisfying `f (x+y) =f (x) f (y)` for all a,y ` in R` Such that,` f (1) =a. Then , f (x) = `

A

1) `a ^(x)`

B

2) `ax`

C

3) `x ^(a)`

D

4) `log x`

Text Solution

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The correct Answer is:
A
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