SOLUTION: How do you evaluate 3 sin^4 90° + 4cos^3 180° ?

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Question 1108657: How do you evaluate 3 sin^4 90° + 4cos^3 180° ?
Answer by ikleyn(52836) About Me  (Show Source):
You can put this solution on YOUR website!
.
sin(90°) = 1.


cos(180°) = -1.


Therefore,  3*sin^4(90°) + 4*cos^3(180°) = 3%2A1%5E4+%2B+4%2A%28-1%29%5E3 = 3*1 + 4*(-1) = 3 - 4 = -1.