Wednesday
May 4, 2016
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
:
Math
Posted by
Sarah
on
Monday, November 22, 2010
at 7:01pm.
Prove :cosx-cosy= -2sin(x+y/2)sin(x-y/2)
Prove: 2cot-2tanx= 4-2sec^2x / tanx
Answer This Question
First Name:
School Subject:
Answer:
Related Questions
Math - Trig - Double Angles
- Prove: sin2x / 1 - cos2x = cotx My Attempt: LS: = ...
math
- prove that cosx(tanx+2)(2tanx+1)=2secx+5sinx
Mathematics - Trigonometric Identities
- Prove: (tanx)(sinx) / (tanx) + (sinx...
Calculus
- Q: If y=sinx/(1+tanx), find value of x not greater than pi, ...
Simplifying with Trigonometry Identities
- Hi, I am a senior in High School ...
Pre-Calc
- Trigonometric Identities Prove: (tanx + secx -1)/(tanx - secx + 1)= ...
Precalculus/Trig
- I can't seem to prove these trig identities and would really ...
TRIG..............
- Q.1 Prove the following identities:- (i) tan^3x/1+tan^2x + ...
Precalculus/Trig
- Prove the following identity: 1/tanx + tanx = 1/sinxcosx I ...
TRIGONOMETRY *(MATHS)
- Q.1 Prove the following identities:- (i) tan^3x/1+tan^2x...
More Related Questions
Search
Members
Username:
Password:
Not yet registered?
Click here to register!
Archives
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005