- #1
rum2563
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Homework Statement
Solve for x.
tan(2x) = 8cos(x)^2 - cot(x) where x is between 0 to 90 degrees.
Homework Equations
tan(2x) = 2tan(x)/1-tan(x)^2
cot(x) = 1/tan(x)
The Attempt at a Solution
tan(2x) = 8cos(x)^2 - cot(x)
2tan(x)/1-tan(x)^2 + 1/tan(x) = 8cos(x)^2
(2tan(x)^2 + (1-tan(x)^2))/(tan(x)-tan(x)^3) = 8cos(x)^2
I am stuck at this point. Any help would be great since this is due tomorrow. Thanks.