leporidaetrails leporidaetrails

07-05-2018
Mathematics

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How does tan 135 degrees compare to tan -135 degrees

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CastleRook CastleRook

17-05-2018

Evaluating the tangent function for the two values we obtain the following:
tan 135=tan(135+180)=tan 315=-1

next:
tan -135=tan(180-135)=tan 45=1
thus comparing the two we see that tan 135 is negative while tan -135 is positive

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