Welcome :: Homework Help and Answers :: Mathskey.com

Q&A
Unanswered
Categories
Users
Ask a Question

Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

Q&A Categories
BASIC MATH (93)
PRE-ALGEBRA (441)
ALGEBRA 1 (2,220)
GEOMETRY (864)
ALGEBRA 2 (2,751)
TRIGONOMETRY (1,187)
PRECALCULUS (1,903)
CALCULUS (2,802)
STATISTICS (129)
PHYSICS (659)
CHEMISTRY (137)
MECHANICAL ENGINEERING (64)
ELECTRICAL ENGINEERING (207)
Winplot Tutorials (2)

Most popular tags

solving-equations system-of-equations functions math slope-intercept-form physics homework-help trigonometric-identities integration limits substitution-method calculus

13,459 questions

17,854 answers

1,446 comments

790,910 users

use half angle formula to find the tan5pi/2

+3 votes

please help!!! thank you.

half-angle-identity

asked Jan 24, 2013 in TRIGONOMETRY by Jose Rodriguez Rookie

Share this question

Google+ Facebook Twitter LinkedIn Reddit

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

+3 votes

Formula:

To find

We know that and .

The solutions is

answered Jan 24, 2013 by richardson Scholar

Please log in or register to add a comment.

Related questions

Find the exact value for cos 165° using the Half-Angle Identity.

asked Nov 26, 2013 in TRIGONOMETRY by linda Scholar

half-angle-identity

Half angle identity, find Tan (22 1/2)

asked Dec 21, 2012 in PRECALCULUS by dozey Mentor

half-angle-identity

half angle identity!!!!!!!!!!!!!

asked Jun 26, 2013 in TRIGONOMETRY by harvy0496 Apprentice

half-angle-identity

Using half angle identities?

asked Jan 11, 2013 in TRIGONOMETRY by angel12 Scholar

half-angle-identity

if sinx=7/5 and angle x is in quadrant 2 and cos y=12/13 and angle y is in quadrant 1 find sin (x+y)

asked Nov 26, 2013 in TRIGONOMETRY by harvy0496 Apprentice

double-angle
half-angle-identity

Use a Double- or Half-Angle Formula to

asked Nov 18, 2014 in TRIGONOMETRY by anonymous

trignometric-equations

If sinA=5/13 for angle A in Quadrant I, find tan2A

asked Nov 26, 2013 in TRIGONOMETRY by skylar Apprentice

double-angle
half-angle-identity

if cos A = -4/5 for angle A in quadrant 2, find cos 2A?

asked Nov 26, 2013 in GEOMETRY by abstain12 Apprentice

double-angle
half-angle-identity

Cos theta= -12/15 and Quadrant 2 Find Sin 2 theta

asked Nov 26, 2013 in TRIGONOMETRY by homeworkhelp Mentor

double-angle
half-angle-identity

Use the half-angle formulas to simplify the expression.

asked Jan 22, 2015 in TRIGONOMETRY by anonymous

half-angle-trigonometric-formulas

Use the half-angle formulas to determine the exact values of the sine, cosine, and tangent of the angle.

asked Jan 22, 2015 in TRIGONOMETRY by anonymous

half-angle-trigonometric-formulas

how does cos^2(2x)= (1/2)(1+cos4x)

asked Nov 26, 2013 in TRIGONOMETRY by payton Apprentice

half-angle-identity

If sinA=-4/5, and A terminates in QIV, then find sin2A

asked Mar 8, 2014 in TRIGONOMETRY by mathgirl Apprentice

double-angle
half-angle-identity

Sin x = 12/13; x is in Quad 2. Find exact values of sin x/2, cos x/2, tan x/2. Use Half Angle Identities.

asked May 3, 2017 in PRECALCULUS by anonymous

half-angle-trigonometric-formulas
trigonometric-functions
exact-value

If cos theta=-4/5 for theta in quadrant II, find sin theta/2

asked May 25, 2017 in GEOMETRY by anonymous

half-angle-identity
double-angle

find the exact values of sin (u/2), cos (u/2), and tan (u/2) using the half - angle formulas.

asked Jan 22, 2015 in TRIGONOMETRY by anonymous

half-angle-trigonometric-formulas

use a double-angle formula to rewrite the expression.

asked Jan 22, 2015 in TRIGONOMETRY by anonymous

double-angle-trigonometric-functions

If sinA=-3/5 with A in QIII

asked Apr 21, 2014 in TRIGONOMETRY by anonymous

half-angle-identity

Use an Addition or Subtraction Formula to find the exact value of the expression.

asked Dec 26, 2017 in TRIGONOMETRY by anonymous

trignometric-addition
trignometric-subtraction

Use Heron’s Area Formula to find the area of the triangle.

asked Jan 23, 2015 in TRIGONOMETRY by anonymous

area-of-triangle
herons-formula

Copyright © 2024 MATHSKEY. All Rights Reserved. Sitemap|Terms Of Use|Disclaimer|Contact Us|FAQ

...