SOLUTION: Evaluate 4sec 180 degrees - 2 sin ^2 270 degrees

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Question 788238: Evaluate 4sec 180 degrees - 2 sin ^2 270 degrees
Answer by lwsshak3(11628) About Me  (Show Source):
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Evaluate 4sec 180 degrees - 2 sin ^2 270 degrees
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4 sec 180 deg=4*(1/cos 180 deg)=4*(1/-1)=-4
2 sin ^2 270 deg=2*(-1)^2=2
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4sec 180 degrees - 2 sin ^2 270 degrees=-4+2=-2