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Let theta be an angle such that cos(theta) = -1/9 and 0 <= theta <= 2pi.

 

Assume that cos(theta/2) < 0. Then if:

 

Terminal point of theta/2 = (a1, a2), enter a1 and a2 in that order.

 
 Jan 24, 2023
 #1
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\((a_1, a_2) = (-1/3, 2 \sqrt{2}/3)\)

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 Jan 24, 2023
 #2
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That is wrong.

 
Guest Jan 24, 2023

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