cos squared theta + sin theta + 1 = 0

should I just use the quadratic formula first and go from there?

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- Feb 16th 2011, 12:20 PMkassums17solving a trig equation
cos squared theta + sin theta + 1 = 0

should I just use the quadratic formula first and go from there? - Feb 16th 2011, 12:29 PMe^(i*pi)
No, the quadratic formula is second.

First change your $\displaystyle \cos^2 \theta $ to $\displaystyle \sin^2 \theta$ using the identity $\displaystyle \sin^2 \theta + \cos^2 \theta = 1$