Use the given information to find the exact value of the trigonometric expression.cos ? = 
; 
< ? < 2?
Find sin(2?).
A. - 
B. 
C. - 
D. 
Answer: C
You might also like to view...
Factor completely. If the polynomial cannot be factored, say it is prime.6x4 + 13x2 + 6
A. (2x2 + 1)(3x2 + 6) B. (3x2 - 2)(2x2 - 3) C. (6x2 + 3)(x2 + 2) D. (2x2 + 3)(3x2 + 2)
Solve the problem.Doctors predict that by administering a vaccine, the number of new cases of a certain childhood disease will decrease by half each year. If 900 people were afflicted with the disease in 2012, estimate the number of new cases in 2017. Round to the nearest whole number.
A. 14 new cases B. 56 new cases C. 113 new cases D. 28 new cases
Make the indicated conversion within American units of weight.8.6 tons to pounds
A. 17,200 lb B. 137.6 lb C. 8600 lb D. 1720 lb
Solve the system of equations.
A. Inconsistent, ? B. x = 0, y = -4, z = 0 C. x = 0, y = -4, z = 4 D. x = 0, y = 0, z = -4