amaths, ...can anyone help me? |
amaths, ...can anyone help me? |
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#1
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![]() Senior Member ![]() ![]() ![]() Group: Member Posts: 64 Joined: Feb 2005 Member No: 104,345 ![]() |
i'm calculation (actually proving) an amaths question.
when it nearly comes to the end, i dunno how to do, so i looked at the answer. and my question is, how can [sin2kθ (1-2sin^2(i mean square here)θ ) +sin2θcos2kθ ] / 2sinθ change into [sin(2k+2)θ ] / 2sinθ ? i would be grateful if someone can tell me how this can be converted. thanks edit// well...er....i'm in grade 11(form 5) now. yeah. jus to let u know... |
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*xcaitlinx* |
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#2
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woahh..that looks liek complete gibberish to me! well i certainly don't know how to do that...maybe it's because im only a freshmen.
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