Establish the identity.sin(4x) = (4 sin x cos x)(2 cos2 x - 1)

What will be an ideal response?


sin(4x) = 2 sin(2x) cos(2x) = (4 sin x cos x)(2 cos2 x - 1).

Mathematics

You might also like to view...

A one-to-one function f is given. Find f-1(x) and graph f(x) with a solid line and f-1(x) with a dotted line on the same axes.f(x) = 3x

A. f-1(x) = - 

B. f-1(x) = - 

C. f-1(x) = 

D. f-1(x) = 

Mathematics

Suppose you have the following project digraph. (The numbers in parentheses represent hours.) Using the decreasing-time algorithm to schedule this project with two processors, the project finishing time is

A. 18 hours. B. 17 hours. C. 20 hours. D. 19 hours. E. none of these

Mathematics

Multiply.(-48) ? 0

A. 1 B. 0 C. -48 D. 48

Mathematics

Decide whether the given functions are inverses.f = {(5, 15), (6, 2), (2, 24), (15, 5)}g = {(15, 5), (2, 6), (24, 2), (5, 15)}

A. Yes B. No

Mathematics