Find the exact value using a double-angle identity.sin 
A. - 
B. 
C. 0
D. - 
Answer: D
You might also like to view...
Let x represent one number and let y represent the other number. Use the given conditions to write a system of equations. Solve the system and find the numbers.The sum of seven times a first number and six times a second number is 33. If the second number is subtracted from three times the first number, the result is 7. Find the numbers.
A. 5 and 1 B. 21 and 12 C. 14 and 6 D. 3 and 2
Provide an appropriate response.Factor the polynomial completely: 7x2 - 19x - 6
A. 7(x - 2)(x - 3) B. 7(x2 - 19x - 6) C. (7x - 2)(x - 3) D. (7x + 2)(x - 3)
Find the partial sum of the geometric sequence with the given first term and common ratio.s12, a1 = 
, r = -3
A. - 66433
B. - 66430
C. - 
D. - 66431
Divide the complex numbers below and leave the result in trigonometric form.
a. 
b. 
c. 
d. 
e. 