Determine whether the given function satisfies a Laplace equation.f(x, y) = cos(x) sin(-y)
A. Yes
B. No
Answer: B
Mathematics
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Find the particular solution to the given differential equation that satisfies the given conditions.D2y - 9 Dy + 14y = 0; Dy = 0 and y = 2 when x = 0
A. y = - 
e7x + 
e2x
B. y = - 
e7x - 
e2x
C. y = 
e7x + 
e2x
D. y = 
e7x - 
e2x
Mathematics
Factor completely.12c5 - 60c3
A. 6c3(2c2 - 5) B. 12c5(c - 5) C. 12c3(c2 - 5) D. 12c2(c3 - 5c)
Mathematics
Evaluate.i38
A. i B. 1 C. -1 D. -i
Mathematics
Simplify. Write your answer in the form a + bi, where a and b are real numbers.Let z = -5 + 5i and w = 5 + 2i. Find 2z + w.
A. -5 + 12i B. -10 + 12i C. -15 + 20i D. -5 + 7i
Mathematics