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OpenStudy (briensmarandache):
can someone check my work? its trig, i have to find the exact value of tan[2sec^-1(-sqrt(5))]
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OpenStudy (briensmarandache):
OpenStudy (briensmarandache):
if it is correct can it be simplified further
OpenStudy (mertsj):
\[\tan 2x=\frac{2\tan x}{1-\tan ^2x}\]
OpenStudy (mertsj):
|dw:1417983029695:dw|
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