0

Guest

Courses New

Find the value of the integral(-p÷2)and (p÷2) v(cos x-cos ³x)dx

Find the value of the integral(-p÷2)and (p÷2) v(cos x-cos ³x)dx

Grade:12

1 Answers

Sunil Raikwar
askIITians Faculty 45 Points
8 years ago
cosx-cos3x=cosx(1-cos2x)=cosx.sin2x{this is an even function}
put sinx=t then cosxdx=dt
so required integral is
2integral{limit 0 to 1}t2dt=2[t3/3]01=2/3

ThanKs & Regards
Sunil Raikwar
askIITians faculty

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Top Engineering Colleges in India

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More