Question

$given that \cot(theta) = \frac{7}{8?} theneveluate \frac{1 + \sin(theta) }{ \cos(theta) ?}$
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Answer 1

Answer:

Sin@=(1-(cos@)^2)^1/2, thrn simply add 1 in both sides and you get: 1+sin@=((1-(cos@)^2)^1/2)+1. That is it :) If sin theta -costheta=1/5, then what is the value of sin theta+cos theta? How do I prove that (cos 7x + cos 5x) / (sin 7x - sin 5x) = cot x by using sum of angle formulas and double angle formulas?