Use the Half-angle Formulas to find the exact value of the trigonometric function. cos 75°
A. - 
B. 
C. 
D. - 
Answer: B
You might also like to view...
Solve the problem.In a certain animal species, the probability that a female will have 0, 1, 2, 3, or 4 offspring in a given year is .31, .21, .19, .17, and .12 respectively. Find the expected number of offspring.
A. 2 B. 1.58 C. 1.38 D. 1.75
Solve the problem.Find two consecutive positive integers such that the square of the smaller integer added to three times the larger integer is equal to 73.
A. No such integers exist. B. -10, -9 C. 10, 11 D. 7, 8
Find the volume of the solid of revolution formed by rotating about the x-axis the region bounded by the curves.f(x) = 
, y = 0, x = -8, x = 12 Give your answer in exact form.
A. ? (ln 21 - 1)
B. ? ln 21
C. 2? (
- 1)
D. ln 21
Divide.
A. 0.088447 B. 0.88447 C. 884.47 D. 8.8447