You are not logged in.
Pages: 1
Thank you everyone.
I found the answer.
Cos^3x=(cos3x +3cosx)/4
1/4 cos3x +3/4 cosx
[yn(nth derivative of y)=a^n cos{ax+b+(nπ/2)}]
.
Using the nine yn rules only. Differentiate cos^3x n times
Everything makes sense until you think about it.
Pages: 1