answersLogoWhite

0

The best way to answer this question is with the angle addition formulas. Sin(a + b) = sin(a)cos(b) + cos(a)sin(b) and cos(a + b) = cos(a)cos(b) - sin(a)sin(b). If you compute this repeatedly until you get sin(3x)cos(4x) = 3sin(x) - 28sin^3(x) + 56sin^5(x) - 32sin^7(x).

User Avatar

Wiki User

16y ago

Still curious? Ask our experts.

Chat with our AI personalities

RossRoss
Every question is just a happy little opportunity.
Chat with Ross
ViviVivi
Your ride-or-die bestie who's seen you through every high and low.
Chat with Vivi
BlakeBlake
As your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake

Add your answer:

Earn +20 pts
Q: Express cos4x sin3x in a series of sines of multiples of x?
Write your answer...
Submit
Still have questions?
magnify glass
imp