180k views
2 votes
Find an identity for cos(4t) in terms of cos(t)

User Prashant G
by
8.4k points

2 Answers

0 votes
Hello here is a solution :
Find an identity for cos(4t) in terms of cos(t)-example-1
User Manuel Allenspach
by
7.9k points
3 votes

\cos4t=\cos2(2t)=2\cos^22t-1
User Borjovsky
by
7.9k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories