Homework Help: math

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

tan (u-v)
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).

No one has answered this question yet.

Answer this Question

Related Questions

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 &...
precalc pre ap - If theta is a rotation angle that terminates in quadrant ll and...
Trigonometry - 1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to...
Trig - 4tan^2u-1=tan^2u 3tan^2u=1 tan^2u=1/3 sq. root of (tan^2u)=sq. root of (1...
trigonometry hlp me - 6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin &#...
math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...
Maths- complex numbers - Find tan(3 theta) in terms of tan theta Use the formula...
math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...
trignonmetry - 6. Prove that tan λ cos^2 λ + sin^2λ/...
Pre-calc help please!!! - 1) tan(sin^-1(5/6)-cos^-1(1/7) 2) tan(è + ); ...

For Further Reading

First Name:
School Subject:
Answer: