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OpenStudy (anonymous):
0.5 = cos x°
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Parth (parthkohli):
Do you remember the cosines for the basic angles? Or I have another way to do this one.
OpenStudy (anonymous):
yes but I know the answer is x=60 but I need to know how to do it
Parth (parthkohli):
It is given that \(\cos(x) = 0.5 = \frac{1}{2}\). Do you know about the 30-60-90 triangle? |dw:1368716870600:dw|
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