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OpenStudy (anonymous):
Write sec(x)-cos(x) in terms of sine and cosine, then simplify. *x=theta
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OpenStudy (jdoe0001):
hint: sec(x) = 1/cos(x) thus \(\bf sec(\theta)-cos(\theta)\implies \cfrac{1}{cos(\theta)}-cos(\theta)\implies \cfrac{\square ?}{\square ?}\)
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