Since the derivative of this would involve more than one term, I'm thinking integration by parts a logical choice but let me think some more about it. What have you tried?
Since the derivative of this would involve more than one term, I'm thinking integration by parts a logical choice but let me think some more about it. What have you tried?
i tried by parts with u=secx
but it was hard
i tried to simplify it using trigonometric identities but it does not work