Wednesday

October 1, 2014

October 1, 2014

Posted by **will** on Wednesday, January 20, 2010 at 10:22am.

cos

- trig -
**bobpursley**, Wednesday, January 20, 2010 at 10:52amIsn't cosine negative in quadrant II?

memorize this:

Sin^2 X + Cos^2 X=1

find cosine X, you know sin X as 3/5

**Answer this Question**

**Related Questions**

trig - how do you work find sin (a-B)beta sign. sin a = 12/13,a lies in quadrant...

trig - Find cos(a=b). sin a = 3/5, a lies in Quadrant II, and cos b = 5/13, b ...

Alg2/Trig - Find the exact value of the trigonometric function given that sin u...

trig - Find sin è/2 for cos è = 1/4 and è lies in Quadrant I.

Pre-calc/Trig - If cot(a)=3 and sin(b)= (15/17) where a being alpha lies in ...

trig - can someone please help me with this problem. i'm doing my review right ...

mth, trig - Given cos a=-7/25 in quadrant II , and sin b=-12/13, in quadrant IV...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...

Trig hep, please? Thank you! - 1. Find the exact value of sin(195(degrees)) 2. ...

Trig - find sin(s+t), given that sin t=1/3, t in quadrant 2, and cos s = -2/5, s...