Raymond B. answered • 03/04/21
Tutor
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Math, microeconomics or criminal justice
-3pi/4 = -135 degrees
4pi/3 = 240 degrees
4tan(-135) - 3csc(240) = 4(1) - 3(-2/sqr3) = 4 +2sqr3
= about 4 + 3.46 = 7.46
reference angles were 45 for the tangent and 60 for the cosecant angle
tangents are positive in quadrant III, cosecants are negative
both angles are in quadrant III
