Use the information given about the angle ? to find the exact value of the indicated trigonometric function.sin ? = 
, tan ? > 0Find cos 
.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the work done by F over the curve in the direction of increasing t.F = 
i + 
j + 
k; C: r(t) = t8i + t6j + t5k, 0 ? t ? 1
A. W = 1
B. W = 19
C. W = 
D. W = 0
Mathematics
Divide as indicated.
A. p - 2
B. p + 2 + 
C. p - 4 + 
D. p - 2 + 
Mathematics
Solve the equation.
= -13
A. 52 B. 17 C. -17 D. -52
Mathematics
Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.(x-4y)3
A. 
B. 
C. x12y3
D. 
Mathematics