Friday
April 18, 2014

Homework Help: math

Posted by Bryan on Friday, March 19, 2010 at 4:42pm.

If sin(x) = /45 and cos(y) = 5/13 with both x and y terminating in quadrant 1 find the exact value of cos(x-y)

cos(4/5 - 5/13)

Is this what I would do?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - If sin(x) = /45 and cos(y) = 5/13 with both x and y terminating in ...
Please help!!!) - If sin(x) = /45 and cos(y) = 5/13 with both x and y ...
Math - If sin(x) = 4/5 and cos(y) = 5/13 with both x and y terminating in ...
Alg2/Trig - Find the exact value of the trigonometric function given that sin u...
Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...
Math- Trig - 1. Determine the exact value of cos^-1 (pi/2). Give number and ...
Trig hep, please? Thank you! - 1. Find the exact value of sin(195(degrees)) 2. ...
Math!!! - angle x is in the second quadrant and angel y is in the first quadrant...
trigonometry - 5. If cot 2θ = 5/12 with 0 ≤ 2θ ≤ π...
math - Determine exact value of cos(cos^-1(19 pi)). is this the cos (a+b)= cos a...

Search
Members