Thursday
April 17, 2014

Homework Help: Trigonometry

Posted by Dee on Monday, November 8, 2010 at 11:40pm.

Find the exact value of tan(a-b)

sin a = 4/5, -3pi/2<a<-pi;
tan b = -sqrt2, pi/2<b<pi

identity used is:

tan(a-b)=(tan a-tan b)/1+tan a tan b

simplify answer using radicals.

(a is alpha, b is beta)

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 < ...
math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...
precalculus - For each of the following determine whether or not it is an ...
trig - evaluate the following in exact form, where the angeles alpha and beta ...
math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...
Math - Given that sin alpha=4/sqrt65, pi/2<alpha<pi, and cos beta=-3/...
Math- Precalculus - Write the expression as the sine, cosine, tangent of an ...
PreCalculus - Hi I need some assistance on this problem find the exact value do ...
Math Trigonometry - What is the maximum integer value of n, where n<148, that...
Trigonometry - a. Find the exact value of sin (theta - pi/6) b. Find the exact ...

Search
Members