...(cosec A - cot A) = 1/3 (cosec A + cot A) = 3 Summing them, 2 cosec A = 3 1/3 cosec A = 6 2/3 = 5/3 sin A = 0.15 Thus, cos A = sqrt (1 - (sin A)^2) = 0.989 2) Prove that (1+tan x - sec x)(1 + cot x + ...
solve for X . tanx + secx = 3 Hint: split it up into int sec^2(x) dx + int e^sin(x) cos(x) dx The first one is standard, and the second one is a straightforward u-substitution.
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