Math

Test for symmetry with repsect to Q=pi/2, the polar axis, and the pole.

r=16cos 3Q

r=16cos(3pi/3 + 3h) = 16(cos3pi/2 3h- sin 3pi/2 sin h)

cos 3pi/2 = 0 sin 3pi/2 = -1

Not symmetrical

My teacher said that this was wrong!Why?

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