Friday
February 27, 2015

Homework Help: Pre-Calculus

Posted by Lucy on Saturday, August 30, 2008 at 10:12pm.

How do you work this problem. I cannot find an example in the book to illustrate how to work it.

Find the value of tan(a-b) if cos a=-3/5, sin b=5/13, 90<a<180, and 90<b<180

Thanks for any help

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Pre calculus - How do you work this problem? Find the exact value of sin 2u, cos...
trig - I am very confused about the concepts of.. sin = sin(180 - ) sin (180...
Trig - A. Find simpler, equivalent expressions for the following. Justify your ...
Trig - Can someone check my answers so far? 1. Find the exact value of tan(-3) ...
pre-calc helpppp - Find sin x/2, cos x/2, and tan x/2 from the given information...
pre-calculus - cosx= -8/17, 180<x<270 find; sin(x/2) cos(x/2) tan(x/2)
Pre-Calc Help!!! - Find sin x/2, cos x/2, and tan x/2 from the given information...
Trigonometry - Identities - If tan 2x = - 24/7, where 90 degrees < x < 180...
Maths - 1) Simplification (trigonometric ratios of allied angles)? Simplify : i...
Calculus - Find the exact values of the following. cos 270 degrees = 90 degrees...

Members