SOLUTION: solve each of the following
cos theta=-3sin theta
3cos^2theta=5-7sin theta
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Question 261882: solve each of the following
cos theta=-3sin theta
3cos^2theta=5-7sin theta
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
step 1 - divide by cos theta to get
step 2 - divde by -3 to get
step 3- take arctan to get
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step 1 - use the identity sin^2(theta) + cos^2(theta) = 1 to get
step 2 - distribute the 3 to get
step 3 - set = 0 to get
step 5 - set = 0 and solve for theta to get
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but this is not possible, so our answer is:
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