Which of the following has the same graph as r = cos 2? a. r = -sin

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Which of the following has the same graph as r = cos 2θ?

a. r = -sin (2θ + π/2) 

b. r = -cos (θ/2)

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Thomas Calculus Early Transcendentals

ISBN: 9780321884077

13th Edition

Authors: Joel R Hass, Christopher E Heil, Maurice D Weir

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