Monday

October 20, 2014

October 20, 2014

Posted by **Angela** on Sunday, July 24, 2011 at 6:14pm.

- Pre Cal -
**Reiny**, Sunday, July 24, 2011 at 6:28pm2sin^2 t + cos^2 t-2

=2sin^2t + 1 - sin^2t - 2

=sin^2t - 1

which could be factored to

(sinx+1)(sinx-1)

**Answer this Question**

**Related Questions**

pre-cal - Simplify the given expression........? (2sin2x)(cos6x) sin 2x and cos ...

Math pre cal - prove the following identity cos^4X - sin^4X = 1-2sin^2X

Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...

trig - 2sin(x)cos(x)+cos(x)=0 I'm looking for exact value solutions in [0, 3&#...

Pre Calc. - Use the sum or difference identity to find the exact value of sin255...

Pre-calc/Calc - Which expression is equivalent to sin(3x) + sin x? A. 2cos(2x)...

pre calc - (cos^2)3x+(sin^2)3x=cos(f(x)) simplify expression and find f(x)

Trig - simplify the expression to a single term: (1-2Sin^2 X)^2 + 4sin^2 X Cos^2...

pre-calc - simplfy the expression by double angle formula or a half angle ...

Pre cal - how would you find the exact value of this expression?? 2sin15°cos°