Establish the identity.cos(4?) = cos4 ? - 6 sin2 ? cos2 ? + sin4 ?
What will be an ideal response?
cos(4?) = cos[2(2?)] = cos2(2?) - sin2(2?) =
= cos4 ? - 6 sin2 ? cos2 ? + sin4 ?
Mathematics
You might also like to view...
Sketch the graph of the parametric equations. Then set up the appropriate integral to find the length of the curve and use a computer to evaluate it.x = sin 3t, y = cos t, 0 ? t ? 2?
A. L = 10.19
B. L = 13.07
C. L = 2?
D. L = 13.07
Mathematics
Sketch the graph of the line with the given equation.y + 4 = 0
A.
B.
C.
D.
Mathematics
Use an integer or rational number to express the number representing change.In one state, the lowest point is 1319 feet below sea level.
A. 1319 B. -1319
Mathematics
Solve the inequality. Graph your solution on a number line, and write your solution in interval notation. - 9 > -18
A. ?
B.
C. ?
D. (-?, ?)
Mathematics