Without using a calculator, determine the value of the trigonometric function or state that the value is undefined.tan 
A. 
B. - 
C. -
D. 
Answer: A
Mathematics
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Determine the specific solutions (if any) to the equation on the interval [0, 2?).cos2 ? + 2 cos ? + 1 = 0
A. ?
B. 
, 
C. 2?
D. 
, 
Mathematics
Multiply.(r + 14)(r + 14)
A. r2 + 28r + 196 B. r2 + 196 C. r + 196 D. 196r2 + 28r + 196
Mathematics
Solve the problem.A pendulum swings through an arc 40 inches long on its first swing. Each swing thereafter, it swings only 70% as far as on the previous swing. How far will it swing altogether before coming to a complete stop? If necessary, round to the nearest inch.
A. 57 in. B. 133 in. C. 114 in. D. 67 in.
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics