Find the value of the indicated trigonometric function of the angle ? in the figure. Give an exact answer with a rational denominator.
Find sin ?.
A. sin ? = 
B. sin ? = 
C. sin ? = 
D. sin ? = 
Answer: B
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Find all the complex roots. Leave your answers in polar form with the argument in degrees.The complex fifth roots of -2i
A. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
B. 32(cos 54° + i sin 54°), 32(cos 126° + i sin 126°), 32(cos 198° + i sin 198°), 32(cos 270° + i sin 270°), 
C. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
D. 
(cos 45° + i sin 45°), 
(cos 117° + i sin 117°), 
(cos 189° + i sin 189°), 
(cos 261° + i sin 261°), 
Solve the problem.A computer printer costs $810. If the sales tax rate is 8
%, how much tax is charged and what is the total price? Round your answers to the nearest cent.
A. $68.85, $878.85 B. $60.75, $870.75 C. $688.50, $1498.50 D. $76.95, $886.95
Determine whether the number is prime, composite, or neither.19
A. Prime B. Composite C. Neither
Solve the logarithmic equation.log (x + 10) - log (x + 4) = log x
A. 6 B. No solution C. 2 D. 2, -5