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OpenStudy (umarsback):
What is the y-value for f(x) = tan(x) when x = -45°?
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hero (hero):
-45° = (360° - 45°) = 315° so f(-45) = f(315) = tan(315)
hero (hero):
@UmarsBack, that was just a hint. You still have to evaluate tan(315)
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