find cos theta is sin theta equals to A upon B
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hope it would help u....
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MYSELFv:
sin tita is opp/hypotenuse not opp/base
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so you need to take in a triangle and find BC
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Won’t the answer be root of b^2- a^2/ b?
no by pythagoras theoram you get b^2-a^2/a^4
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