Friday

August 22, 2014

August 22, 2014

Posted by **Jay** on Tuesday, November 20, 2007 at 12:01pm.

Show the product as a sum or difference

sin 6x cos 2x

- PreCal -
**Michael**, Tuesday, November 20, 2007 at 3:38pm(sin6x)(cos2x)

You will need to use the double-angle identities to expand both sin6x and cos2x.

As a hint, you will have to use sin(3*2x) for the double-angle of sine.

If you want to work on that, then we can critique your thinking.

- PreCal -
**kelly**, Wednesday, November 21, 2007 at 8:14amok thanks I'll work on that

- PreCal -

**Related Questions**

Pre-Calc - Could someone show me how to solve these two problems-I have 10 of ...

Math - Calculus - The identity below is significant because it relates 3 ...

TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...

Precal nightmare - Show that: sec (A-B)= (cos(A+B))/(cos^2 A-Sin^2 B)

MATH - 1.)Find the exact solution algebriacally, if possible: (PLEASE SHOW ALL ...

Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...

Trigonometry - Show algebraically how to confirm that cos2x=cos^2x-sin^2x using ...

algebra - Can someone please help me do this problem? That would be great! ...

Math (Trig) - sorry, another I can't figure out Show that (1-cot^2x)/(tan^2x-1)=...

Polynomials - can someone show me how to do the sum, difference and product for ...