Monday
December 22, 2014

Homework Help: trig

Posted by Maddie on Tuesday, November 27, 2012 at 11:21pm.

If tan y = -4/3 and y is in Q I'VE find cos 2y

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...
Trig. - sec^2xcotx-cotx=tanx (1/cos)^2 times (1/tan)-(1/tan)=tan (1/cos^2) times...
trig 26 - simplify to a constant or trig func. 1. sec u-tan u/cos v+sin v ...
precalculus - For each of the following determine whether or not it is an ...
trig - Show that 1-cos2A/Cos^2*A = tan^2*A 1-cos2A/Cos^2*A = [Cos^2(A) - Cos(2A...
TRIG - what is another form of: sin (A+B) sin (A-B)/ cos^2 A cos^2 B a) cos^2 A...
Trigonometry desperate help, clueless girl here - 2. solve cos 2x-3sin x cos 2x...
Trigonometry - 1.Solve tan^2x + tan x 1 = 0 for the principal value(s) to two ...
trig help much appreciated! :)) - 1. Find the complete exact solution of sin x...
Trigonometry - Please review and tell me if i did something wrong. Find the ...

Search
Members