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Math Homework HELP!

How do i use sin ,cos, and tan i dont know how to do the problems or how to figure out which one to use and my teacher help dont help me bc he dont no how to teach

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Just learn what they are, and also the amounts of some the common ones like sin 30, sin 60, you'll be fine. And practice.

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Remember SOH CAH TOA
Sine: Opposite/Hypotenuse
Cosine: Adjacent/Hypotenuse
Tangent: Opposite/Adjacent

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And remember
sine 0 = 0
cosine 0 = 1

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Hi Claire, Im over there in the comments on question about reupholstery, come see me!
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