Find Dxy.y = sinh 5x coth x
A. 5 cosh 5x coth x - sinh 5x csch2x
B. 5 cosh 5x coth x - sinh 5x csch x coth x
C. 5 cosh 5x coth 5x - sinh 5x csch25x
D. -5 cosh 5x csch2x
Answer: A
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Solve the problem.The sum of three numbers is 6. The first, minus the second, plus 3 times the third, is -6. The third, plus 4 times the first, plus the second, is 12. What are the numbers?
A. 2, 5, -1 B. -2, -5, 1 C. No solution D. 2, 2, 5
Solve the equation.
- 
= 
A. {±8}
B. 
C. ?
D. {±8i}
Find three solutions for the equation.4x + y = 12
A. (8, -44), (9, -48), (10, -52) B. (0, 12), (9, -24), (10, -28) C. (8, -20), (9, -20), (10, -20) D. (0, 12), (9, 48), (10, 52)
A line contains the given points. (a) Find the slope of the line that is parallel to the line containing the given points. (b) Find the slope of the line that is perpendicular to the line containing the given points.(-4, 8) and (-3, 10)
A. (a) 
; (b) - 2
B. (a) - 2; (b) 
C. (a) 2; (b) - 
D. (a) 2; (b) - 2