Hi everyone I need your help. This is a question of using reduction formulae. This was adapted from Further Pure 2. (I don't know how to type equations here, so I will upload as a picture) Thanks for your help!
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Originally Posted by rednest Hi everyone I need your help. This is a question of using reduction formulae. This was adapted from Further Pure 2. (I don't know how to type equations here, so I will upload as a picture) Thanks for your help! Integration by parts: first write as then expand so we have: Now use integration by parts on the integral on the right (you will get a multiple of ) RonL
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