Posted by **April** on Friday, March 9, 2012 at 4:06pm.

If CSC X = 4 in the quadrant 1, what is COS X?

- Trig -
**john**, Friday, March 9, 2012 at 4:41pm
cos(x)=(4^2-1^2)^(1/2). If your csc=4, then build your right triangle and if csc(x) is hyp/opposite, then you should get what i have put above. Hope this helps

- Trig -
**Steve**, Friday, March 9, 2012 at 5:02pm
if cscx = 4, sinx = 1/4

cos^2 = 1 - sin^2 = 15/16

cosx = √15 / 4

- Trig -
**john**, Friday, March 9, 2012 at 6:53pm
my mistake, I forgot to put the 4 underneath the sq root of 15

## Answer this Question

## Related Questions

- Alg2/Trig - Find the exact value of the trigonometric function given that sin u...
- Math-Trig - Trig Questions- 1. Write the algebraic expression which shows Cos((...
- trig - how would you verify this trig identity (1+cos(x) / 1-cos(x)) - (1-cos(x...
- trig - can someone please help me with this problem. i'm doing my review right ...
- math-Trig - 1. Write the algebraic expression which shows Cos((ArcSin(4/X)), 2...
- mth, trig - Given cos a=-7/25 in quadrant II , and sin b=-12/13, in quadrant IV...
- trig - The terminal side of θ lies on a given line in the specified ...
- trig - Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the ...
- trig - Let (theta) be an angle in quadrant II such that csc(theta)=8/5 Find the ...
- Trig - csc thea= -2, quadrant 4. what are the six trig functions?