menu-iconExamlexExamLexServices

Discover

Ask a Question
  1. All Topics
  2. Topic
    Mathematics
  3. Study Set
    Precalculus Mathematics for Calculus
  4. Exam
    Exam 7: Analytic Trigonometry
  5. Question
    Use a Half-Angle Formula to Find the Exact Value Of \cos
Solved

Use a Half-Angle Formula to Find the Exact Value Of \cos

Question 17

Question 17

Essay

Use a half-angle formula to find the exact value of cos⁡π8\cos \frac { \pi } { 8 }cos8π​ .

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q12: Simplify the trigonometric expression. <span

Q13: Simplify. <span class="ql-formula" data-value="\frac {

Q14: Use a graphing device to find

Q15: Solve the given equation. <span

Q16: Write <span class="ql-formula" data-value="\frac {

Q18: Find all solutions of <span

Q19: Find the exact value. <span

Q20: Solve the given equation. <span

Q21: Find <span class="ql-formula" data-value="\sin 2

Q22: Solve the given equation. <span

Examlex

ExamLex

About UsContact UsPerks CenterHomeschoolingTest Prep

Work With Us

Campus RepresentativeInfluencers

Links

FaqPricingChrome Extension

Download The App

Get App StoreGet Google Play

Policies

Privacy PolicyTerms of ServiceHonor CodeCommunity Guidelines

Scan To Download

qr-code

Copyright © (2025) ExamLex LLC.

Privacy PolicyTerms Of ServiceHonor CodeCommunity Guidelines