Hey guys, need help showing this identity: any help much appreciated!
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Originally Posted by jvignacio Hey guys, need help showing this identity: any help much appreciated! The half-angle identities are: Consider one side and equate to the other thus:
Originally Posted by Air The half-angle identities are: Consider one side and equate to the other thus: thanks for that! for this one: did you just cancel out the sinx in the top fraction with the buttom fraction and re arrange to make the 1's first?
Originally Posted by jvignacio thanks for that! for this one: did you just cancel out the sinx in the top fraction with the buttom fraction and re arrange to make the 1's first? These are the steps in between (in the end, I just rearranged to get in in the same format as the question asked):
Originally Posted by Air These are the steps in between (in the end, I just rearranged to get in in the same format as the question asked): yes yes now i understand. thanks for that
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