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ok, tell me what is the formula to compute sin X
 one year ago

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sin X = opposite side / hypotenuse side. do you know which is which?
 one year ago

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dw:1364252793504:dw
 one year ago

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consider angle x, opposite side of x is AY
 one year ago

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hypotenuse is just one is XY
 one year ago

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so, sin X = opposite /hypotenuse . in your picture, you have values of them, just put them into the fraction, you have sin. cos = adjacent side /hypotenuse. do the same.
 one year ago

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study the formula is the key.
 one year ago

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you do, not me. I check only.
 one year ago

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bingo. continue friend, you can do that, right?
 one year ago

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bingo!!!if the question ask you to find sin or cos of Y, do the same, at that moment, the adj of Y is what?
 one year ago
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