Find all values of ? in [0°, 360°) that satisfy the equation.
tan 
= -1
A. {150°}
B. {330°}
C. {300°}
D. {120°}
Answer: C
Mathematics
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Match the graph to the given cylindral or spherical equation.? = cos ? csc2 ?
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Assume that all variables are non-negative.
A. 2x2y4 B. 4x4y2 C. 2.497x2y4 D. not a real number
Mathematics
For the given matrix A, find -A.A = 
A. 
B. 
C. 
D. 
Mathematics
Does the system have one solution, no solution, or an infinite number of solutions? 2x - y = 5-4x + 2y = -18
A. No Solution B. One C. Infinite number
Mathematics