Establish the identity.cos(4u) = 2 cos2(2u) - 1
What will be an ideal response?
cos(4u) = cos[2(2u)] = 2 cos2(2u) - 1
You might also like to view...
Using synthetic division, determine whether the numbers are zeros of the polynomial.-2, 0; f(x) = 3x3 + x2 + 7x + 3
A. Yes; yes B. No; no C. No; yes D. Yes; no
Simplify.b4 ? b
A. b5 B. 4b C. b4 D. (2b)5
Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = x2i + xyj + yk; C: the counterclockwise path around the perimeter of the rectangle in the x-y plane formed from the x-axis, y-axis , x = 2 and y = 9
A. -162 B. - 81 C. 81 D. 162
Provide an appropriate response.
Using the given frequency distribution table for the 2-hour intervals of the temperatures for June 24, determine the temperature interval which occurred most frequently. 
A. 80 - 84o B. 90 - 94o C. 75 - 79o D. 85 - 89o