Tuesday
January 24, 2017
School Subjects
Art
Business
Computers
English
Foreign Languages
Health
Home Economics
Math
Music
Physical Education
Science
Social Studies
Grade Levels
Preschool
Kindergarten
Elementary School
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th Grade
7th Grade
8th Grade
High School
9th Grade
10th Grade
11th Grade
12th Grade
College
Adult Education
Post a New Question
Current Questions
Homework Help
:
pre-calc
Posted by
Amanda
on
Sunday, April 22, 2012
at 6:21pm.
simplfy the expression by double angle formula or a half angle formula.
cos^2(x/2)-sin^2(x/2)
2sin(x/2)cos(x/2)
Answer This Question
First Name:
School Subject:
Answer:
Related Questions
Pre-Calculus
- I really need help on this question Simplify the expression by ...
Pre-Cal
- 1) Verify the identity cos^2 B - sin^2 B = 2 cos^2 B -1 I know that ...
Trigonometry
- I need to prove that the following is true. Thanks. csc^2(A/2)=...
Trigonometry - Identities
- If tan 2x = - 24/7, where 90 degrees < x < 180...
Math 2nd question
- Express as a single sine or cosine function (note: this is ...
pre-calc helpppp
- Simplify the expression by using a Double-Angle Formula or a ...
Pre-Calc Help!!!
- Simplify the expression by using a Double-Angle Formula or a ...
Math
- 1. use the suitable product-to-sum formula to rewrite the following ...
Trig Help!
- Question: Trying to find cos π/12, if cos π/6 = square ...
trigonometry (please double check this)
- Solve the following trig equations. ...
More Related Questions
Search
Archives
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005