Posted by **Josh** on Thursday, April 19, 2012 at 8:26pm.

sin^4t-cos^4t/sin^2t cos^2t= sec^2t-csc^2t

i have =(sin^2t+cos^2t)(sin^2t+cos^2t)/sin^2tcos^2t

then do i go =(sin^2t+cos^2t)/sin^2tcos^2t

stumped

## Answer This Question

## Related Questions

- TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
- tigonometry - expres the following as sums and differences of sines or cosines ...
- Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...
- algebra - Can someone please help me do this problem? That would be great! ...
- trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...
- Trig - Find sin(s+t) and (s-t) if cos(s)= 1/5 and sin(t) = 3/5 and s and t are ...
- Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...
- trig - The expression 4 sin x cos x is equivalent to which of the following? (...
- math - Proving Trigonometric Identities 1. sec^2x + csc^2x= (sec^2 x)(csc^2 x) 2...
- Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...

More Related Questions