Find the exact value of y, or state that y is undefined.y = cos-1 0
A. ?
B. undefined
C. 0
D. 
Answer: D
Mathematics
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Solve the equation on the interval 0 ? ? < 2?.
sin ? - cos ? = -1
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression for the given replacement values.
for x = -38, y = 0
A. 0 B. -38 C. 38 D. undefined
Mathematics
Evaluate the expression.
A. 
B. 
C. 
D. 0
Mathematics
Approximate the area under the graph of f(x) over the specified interval by dividing the interval into the indicated number of subintervals and using the left endpoint of each subinterval.f(x) = 
; interval [1, 5]; 4 subintervals
A. 0.4636 B. 1.4636 C. 1.4236 D. 2.0833
Mathematics