what is the value of sin 30
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Since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. Answer. According to the property of cofunctions (Topic 3), sin 30° is equal to cos 60°. sin 30° = ½.
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0 , 1,2,3,4
Divide by each term by 4 and taking square root
sin 0=0
sin 30=1/2
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