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OpenStudy (help!!!!):
Help me find the exact value! Will fan and medal
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OpenStudy (help!!!!):
cos(-150degrees)
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The answer is -1/2 but I got \[-\frac{ \sqrt{3} }{ 2 }\]
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@Astrophysics @ganeshie8 @inkyvoyd @imqwerty @mathmale @pooja195 @SolomonZelman Quick Help Plz!
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so reference angle is 30 and the cos or x value is \[-\frac{ \sqrt{3} }{ 2 }\]
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@Luigi0210 @triciaal
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@sleepyjess
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|dw:1479356325397:dw|
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