Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. ?(100 ln 101 + 100)
B. ?(100 ln 101 - 100)
C. ?(101 ln 101 + 100)
D. ?(101 ln 101 - 100)
Answer: D
Mathematics
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Solve the differential equation.y'' - 2y' - 15y = 0
A. y = C1e3x + C2e-5x B. y = C1e-3x + C2xe5x C. y = e-3x(C1 cos 5x + C2 sin 5x) D. y = C1e-3x + C2e5x
Mathematics
Write the number in expanded form.8,486
A. (8 ? 104) + (4 ? 103) + (8 ? 102) + (6 ? 101) B. (8 ? 101) + (4 ? 102) + (8 ? 103) + (6 ? 104) C. (8 ? 103) + (4 ? 102) + (8 ? 101) + (6 ? 100) D. (8 ? 100) + (4 ? 101) + (8 ? 102) + (6 ? 103)
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Solve the equation.
= 
x
A. 
B. 
C. 
D. {1}
Mathematics
Simplify the exponential expression.(15b)0
A. 1 B. 0 C. 15 D. b
Mathematics