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OpenStudy (simplymarie_x):
If the sin 0° = 0, then which statement is true? Select one: a. cos 90° = 1, because the cosine and sine are complements b. cos 180° = 1, because the cosine and sine are supplements c. cos 90° = 0, because the cosine and sine are complements d. cos 180° = 0, because the cosine and sine are supplements
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OpenStudy (simplymarie_x):
Is it C?
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