Use the method of undetermined coefficients to solve the differential equation.
+ 8 
+ 12y = -6 - ex; 
= 
and y = - 
when x = 0
A. y = 
e-2x - 
e-6x + 
- 
ex
B. y = 
e-2x + 
e-6x - 
- 
ex
C. y = 
e-2x - 
e-6x - 
+ 
ex
D. y = 
e-2x - 
e-6x - 
- 
ex
Answer: D
Mathematics
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Evaluate the expression according to the order of operations.
- 4
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Find the quadratic approximation of f at x = 0.f(x) = tan 3x
A. Q(x) = 1 + 
x2
B. Q(x) = 3x
C. Q(x) = 1 + 3x2
D. Q(x) = 1 - 
x2
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What will be an ideal response?
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Multiply.10ax2(8ax6 - 11x2 - 6)
A. 80a2x8 - 110ax4 B. 80ax6 - 110x2 - 60 C. 80a2x8 - 110ax4 - 60ax2 D. 80a2x8 - 11x2 - 6
Mathematics