Solve the equation symbolically.
= 4
A. 54
B. -4
C. 74
D. -74
Answer: C
Mathematics
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Use integration by parts to establish a reduction formula for the integral.
, n ? 1
A. 
= 
cotn-1 x - 
B. 
= 
cotn-2 x - 
C. 
= - cotn-1 x + 
D. 
= 
cotn-1 x + 
Mathematics
Multiply.(x + 8)(x3 + 2x - 7)
A. x4 + 8x3 + 2x2 + 23x - 56 B. x3 + 10x2 + 9x - 56 C. x4 + 8x3 + 2x2 + 9x - 56 D. x4 + 2x2 - 7x + 8
Mathematics
Find the requested vector.w = 3i - 5j - kFind a vector orthogonal to both w and j + k.
A. -3i + 2j - 2k B. 3i + 2j - 3k C. 3i - 3j - 4k D. -4i - 3j + 3k
Mathematics
Write the equation of the line with the given conditions.passing through (-8, -3) and parallel to the line with equation 5x - 7y = 9
A. y = 
x + 
B. y = - 
x - 
C. y = - 
x - 
D. y = 
x - 
Mathematics