Sunday
April 20, 2014

Homework Help: Trigonometry

Posted by Jennifer on Thursday, March 3, 2011 at 7:55pm.

use the appropriate trig identity (sum and difference, half angle, double angle) to find the exact value. 1)cos 255 degrees
2) sin 165 degrees
3) tan 285 degrees

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

TRIG/ALGEBRA - 1) Find the exact value. Use a sum or difference identity. tan (-...
trigonometry - We begin by setting t=sin 18 degrees we weill think of t an an "...
Math-Trigonometry - Use the half-angle formulas to find the exact values. Cosine...
trig - use a half-angle identity to find the exact value of tan 105 degrees.
MATH - 1.)Find the exact solution algebriacally, if possible: (PLEASE SHOW ALL ...
Algebra 2 Honors - Find the exact value by using an appropriate sum or ...
Trig hep, please? Thank you! - 1. Find the exact value of sin(195(degrees)) 2. ...
Trigonometry - Identities - If tan 2x = - 24/7, where 90 degrees < x < 180...
math - find the angle that is coterminal to 525 degrees and lies between 0 ...
Algebra II - Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)...

Search
Members