Wednesday

October 1, 2014

October 1, 2014

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

- trig -
**Jennifer**, Wednesday, November 28, 2012 at 3:19pmShould this be Q IV (quadrant 4)

tan-1(-4/3) = -53.13 degrees (-53.13 degrees = 360 + -53.13 = 306.87, is in quadrant 4)

Evaluate with your calculator cos(2*306.87)

**Answer this Question**

**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 ²u-tan ²u/cos ²v+sin ²v ...

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 ...