Decide whether A and B are inverses by calculating AB and BA.A = 
B = 
A. Yes
B. No
Answer: A
Mathematics
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Provide an appropriate response.The number of critical points of f(x, y) = x2 + x2y + y2 - 2y + 2 is
A. 0. B. 1. C. 2. D. 3. E. 4.
Mathematics
Find the vertex of the parabola.(y + 4)2 = 12(x + 1)
A. (1, 4) B. (-1, -4) C. (-4, -1) D. (4, 1)
Mathematics
Find the quotient.4 ÷ 
A. 
B. 12
C. 
D. 8
Mathematics
Multiply or divide and leave the answer in trigonometric notation.4(cos 31° + i sin 31°) ? 5(cos 13° + i sin 13°)
A. 9(cos 44° + i sin 44°) B. 20(cos 44° + i sin 44°) C. 9(cos 43° + i sin 43°) D. 20(cos 18° + i sin 18°)
Mathematics