Find the exact value of y, or state that y is undefined.y = sec-1 (-2)
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
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Find the absolute value.
?
?
A. 7 B. 9 C. -9 D. 0 E. -7
Mathematics
Evaluate the integral.
A. 
cos 81
B. 
(1 - cos 81)
C. 
(1 - cos 81)
D. 
cos 81
Mathematics
Divide.0.3 ÷ 0.01
A. 30 B. 3 C. 0.3 D. 0.03
Mathematics
Solve the equation by factoring.7x2 - 13x = 2
A. {-7, 2}
B. 
C. 
D. 
Mathematics