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माना f(x)=|(cosx,x,1),(2sinx,x^2,2x),(ta...

माना `f(x)=|(cosx,x,1),(2sinx,x^2,2x),(tanx,x,1)|` हो , तो `{:("Limit"),(x rarr0):}(f'(x))/(x)=`

A

`2`

B

`-2`

C

`-1`

D

`1`

लिखित उत्तर

Verified by Experts

The correct Answer is:
B
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