Solve the problem.Find the tangent to y = cos x at x = 
.
A. y = x + 
B. y = - x + 
C. y = 1
D. y = - x - 
Answer: B
Mathematics
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Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-1, -2)} B. {(0, -2)} C. {(1, -3)} D. no solution; ?
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.27
- 12
A. 15
B. 75
C. 15
D. 39
Mathematics
Find the value of the expression using the given values.
?x = 6, y = 8
A. 9 B. 10 C. 7 D. 5
Mathematics
Evaluate the improper integral or state that it is divergent. 
A. 25 ln
B. 25 ln 
C. 
2
D. 25 ln 2
Mathematics