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I = int cos (ln x) dx. Then I= (c deno...

`I = int cos (ln x) dx`. Then I=
(c denotes constant of integration)

A

`(x)/(2) {cos (ln x) + sin (ln x)} + c`

B

`x^(2) {cos (ln x) - sin (ln x)} + c`

C

`x^(2) sin (ln x) +c`

D

`x cos (ln x) +c`

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