SOLUTION: use the coordinates for familiar angles on the unit circle to solve the equation sec(x)=- square root 2 , where pi<or equal to x<or equal to 3pi/2 ?
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Question 924913: use the coordinates for familiar angles on the unit circle to solve the equation sec(x)=- square root 2 , where pi Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! sec(x)=- √2
1/cos(x) = - √2
cos(x) = -1/√2 = -√2/2
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(cosx, sinx) Summary Unit Circle .
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