(1/cot^2 50 degrees) - (1/cos^2 50 degrees) = ?

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- Sep 12th 2012, 02:19 PMavatartiger2subtracting fractions with cotangent and cosecant?
(1/cot^2 50 degrees) - (1/cos^2 50 degrees) = ?

- Sep 12th 2012, 02:26 PMa tutorRe: subtracting fractions with cotangent and cosecant?
$\displaystyle \cos^2 x +sin^2 x \equiv 1$

$\displaystyle 1+\tan^2 x \equiv \sec^2 x$

$\displaystyle \tan^2 x - \sec ^2 x \equiv ...$ - Sep 12th 2012, 04:23 PMMaxJasperRe: subtracting fractions with cotangent and cosecant?