Saturday

March 28, 2015

March 28, 2015

Posted by **lauren** on Thursday, March 22, 2007 at 12:16pm.

given sin u=3/4 and cos v= -5/13 with U and V in quadrant 2

Use the identity

tan (u-v) = (tanu tanv)/[1-tanu tanv)

Get the values of tanu and tanv from the sines and cosines that you are given. For example, if cos v = -5/13, sin v = 12/13 and tan v = -12/5 (in the second quadrant).

**Answer this Question**

**Related Questions**

Trig - 4tan^2u-1=tan^2u 3tan^2u=1 tan^2u=1/3 sq. root of (tan^2u)=sq. root of (1...

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...

precalculus - For each of the following determine whether or not it is an ...

math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...

Trigonometry desperate help, clueless girl here - 2. solve cos 2x-3sin x cos 2x...

math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...

precalculus half angle question stumped - Given tanu= -1/3 and sinu <0, find ...

Trigonometry - 1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two ...

Maths- complex numbers - Find tan(3 theta) in terms of tan theta Use the formula...

math - use exact values of the sin,cos and tan of (pi/3) and (pi/6)(which I ...