Youtor
Integral of sin2x using the Half Angle Formula
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=1HKgmzkT0EE
In this video, I demonstrate how to integrate the function sin^2(3x) by using its half angle formula equivalent. That is... • sin^2(x) = [ 1 - cos(2*x) ] / 2 • This powerful trig identity turns this into a very simple problem because we are reducing it's power from 2 to 1. • Note that if I try to find the anti-derivative using the method of integration by parts, I'll end up going around in circles. • Thanks for watching. Please give me a thumbs up if you have found this video helpful. • Please ask me a maths question by commenting below and I will try to help you in future videos. • I would really appreciate any small donation which will help me to help more math students of the world. • Tip me some DogeCoin: A4f3URZSWDoJCkWhVttbR3RjGHRSuLpaP3 • Tip me at PayPal: https://paypal.me/MasterWu
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