Use the power-reducing identities to rewrite the expression that does not contain trigonometric functions of power greater than 1.cos4 x
A. 
B. 
C. 
D. 
Answer: A
You might also like to view...
Solve the problem.A guy wire to a tower makes a 67° angle with level ground. At a point 37 ft farther from the tower than the wire but on the same side of the base as the wire, the angle of elevation to the top of the pole is 32°. Find the wire length (to the nearest foot).
A. 39 ft B. 68 ft C. 34 ft D. 73 ft
Solve the problem. If necessary, round to the nearest tenth.On a sunny day, a building and its shadow form the sides of a right triangle. If the hypotenuse is 37 m long and the shadow is 31 m, how tall is the building?
A. 30.4 m B. 48.3 m C. 20.2 m D. 6.0 m
Translate to an equation and solve.What percent of 75,544 is 43,815.52?
A. 0.58% B. 58% C. 1.7% D. 0.017%
Find, if possible, the whole number that makes the equation true.35 = 21 + 2 ? 
A. 7 B. 0 C. Any whole number D. 14