Solve the system by using the inverse of the coefficient matrix. 2x1 + 6x2 = 2 2x1 - x2 = -5
A. (1, -2)
B. (2, -1)
C. (-2, 1)
D. (-1, 2)
Answer: C
Mathematics
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What will be an ideal response?
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Find the indicated derivative.Find y " if y = 2 sin x.
A. y " = 2 sin x B. y " = - 2 sin x C. y " = 2 cos x D. y " = 4 sin x
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Solve.Find the intersection: {-5, 0, 2, 5} ? {2, 5, 7}.
A. {2, 5} B. {-5, 0, 2, 5, 7} C. {-5, 0, 2, 5} D. {2, 5, 7}
Mathematics
Find the limit if it exists.
(6x2 - 4x - 6)
A. 186 B. 198 C. 246 D. 234
Mathematics