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If y = 2^(-x) then dy/dx =...

If `y = 2^(-x)` then dy/dx =

A

`- x/(2^(x+1))`

B

`(log (1/2))/(2^(x))`

C

`2^(-x).log 2`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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