Asked by Davis

5sin^2 270degrees -3cos180degrees-tan(-180degrees)

i got -2 but I'm not sure if i did it right?

Answers

Answered by Damon
sin 270 = -1
cos 180 = -1
tan -180 = tan 180 = sin 180/-1 = 0

-5 -3(-1) = -5 + 3 = -2 agree
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