SOLUTION: find derivative of (sin(x+a)/cos x)?

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Question 1061949: find derivative of (sin(x+a)/cos x)?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
find derivative of (sin(x+a)/cos x)?
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f(x) = sin(x+a)/cos x
f(x) = sin(x+a)*sec(x)
f'(x) = cos(x+a)*sec(x) + sin(x+a)*sec(x)*tan(x)