Math, asked by amanrana729, 1 year ago

Solve the equation

cos^2(x)+cos^2(2x)+cos^2(3x) = 1

Answers

Answered by ihbaoreap5n46r

multiply 2 on both sides

Attachments:

amanrana729: Prove that cos π/7 − cos 2π/7 + cos 3π/7 = 1 please also solve this

amanrana729: Prove that cos π/7 − cos 2π/7 + cos 3π/7 = 1/2

amanrana729: the first question is wrong

ihbaoreap5n46r: done check

amanrana729: thank you genius!

ihbaoreap5n46r: Welcome

Previous Question

Next Question

Similar questions

Accountancy, 7 months ago

History, 7 months ago

Social Sciences, 7 months ago

Business Studies, 1 year ago

History, 1 year ago

Biology, 1 year ago

Math, 1 year ago

Chemistry, 1 year ago