Sunday

April 19, 2015

April 19, 2015

Posted by **Don** on Saturday, December 17, 2011 at 6:47pm.

cot4theta - csc4theta = -cot sq theta - csc sq theta

How ??

- Trig -
**Steve**, Saturday, December 17, 2011 at 11:41pmcot^4 - csc^4

= (cot^2 - csc^2)(cot^2 + csc^2)

= (-1)(cot^2 + csc^2)

= -cot^2 - csc^2

remember csc^2 = 1 + cot^2 ??

trig - If sin theta is equal to 5/13 and theta is an angle in quadrant II find ...

Algebra II - Verify that (sec theta/sin theta)(cot theta/csc theta) = csc theta ...

trig - If theta is the measure of an angle in standard position with the given ...

trig - Derive the identity 1 + cot ^2 theta = csc^2 theta by dividing x^2 + y^2...

Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...

Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...

trig - Given csc theta= 4, cot theta < 0 Find the exact values of cos theta ...

trig - find an expression equivalent to sec theta sin theta cot theta csc theta

trig 30 - For csc^2 A-1/cot A csc A, what is the simplest equivalent trig ...

Calculus - Which is the correct cofunction identity for (tan theta?) A csc(...