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Differentiate the following from first p...

Differentiate the following from first principle: `tan2x`

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f(x) = tan 2x

`f'(x)=lim_(h->0)(f(x+h)-f(x))/h`

`f'(x)=lim_(h->0)(tan(2x+2h)-tan2x)/h`

`f'(x)=lim_(h->0) sin(2x+2h-2x) /(h*cos(2x+2h)*cos2x) `

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RD SHARMA-DERIVATIVES-Solved Examples And Exercises
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  8. Differentiate the following from first principle: 3^(x^2).

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  9. Differentiate each of the following from first principle: sqrt(tanx)

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