LaPlace transformation

bing.thio

New member
Joined
Mar 20, 2020
Messages
1
1584710596763.png

My question is regarding number 24! How can you manipulate the (1-sin^2(t)) term into a (1-cos(2t)/2 term?
 

tkhunny

Moderator
Staff member
Joined
Apr 12, 2005
Messages
10,671
One for free.

This is why we study trigonometry before we study differential equations.

cos(2t) = 1 - 2sin2(t)

sin2(t) = [1 - cos(2t)]/2 ..........................edited

Better brush up. It doesn't get easier.
 
Top