1.

Read the following passages and answer the following questions (7-9) Consider the integrals of the form l=inte^(x)(f(x)+f'(x))dx By product rule considering e^(x)f(x) as first integral and e^(x)f'(x) as second one, we get l=e^(x)f(x)-int(f(x)+f'(x))dx=e^(x)f(x)+c inte^(x)((1+sinxcosx)/(cos^(2)x))dx is equal to

Answer»

e^(X)F(x)+c`
`e^(x)tan^(2)x+c`
`e^(x)log|secx|+c`
none of these

Answer :D


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