Find the exact value of y, or state that y is undefined.y = cos-1
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Evaluate the integral.
A. 
B. 
C. 
D. 
Mathematics
Simplify the radical expression.
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Estimate the sum or difference by rounding each number to the nearest ten.
A. 7332 B. 7330 C. 7300 D. 7340
Mathematics
Find the exact value under the given conditions.cos ? = 
, 0 < ? < 
; sin ? = - 
, - 
< ? < 0Find tan(? + ?).
A. 
B. 
C. 
D. 
Mathematics