lim(x->0)(2 7^x-9^x-3^x+1)/(sqrt(2)-sqrt...

`lim_(x->0)(2 7^x-9^x-3^x+1)/(sqrt(2)-sqrt(1+cosx))`

A

`sqrt(2)log3`

B

`8sqrt(20(log3)^(2)`

C

`8sqrt(2)(log3)`

D

None of these

Verified by Experts

The correct Answer is:

B

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