Find the unit tangent vector of the given curve.r(t) = (8 + 2t8)i + (6 + 10t8)j + (4 + 11t8)k
A. T = 
i + 
j + 
k
B. T = 
i + 
j + 
k
C. T = 2i + 10j + 11k
D. T = 
i + 
j + 
k
Answer: A
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Graph the function. Determine the symmetry, if any, of the function.y = -x2/3
A. Symmetric about the y-axis
B. No symmetry
C. Symmetric about the y-axis
D. No symmetry
Solve the differential equation.5y" = -22y' + 15y
A. y = c1e-5x + c2e-3x/5 B. y = c1e-5x + c2e3x/5 C. y = c1e5x + c2e-3x/5 D. y = c1e-5x + c2e3x
Find the value of df-1/dx at x = f(a).f(x) = x3 - 3x2 - 2, x ? 2, a = 4
A. - 
B. 
C. 24
D. 
Explain how to obtain the graph of the given quadratic function from the graph of 
f(x) = x2 + 8
A. Take the graph of y = x2 and shift it 8 units down. B. Take the graph of y = x2 and shift it 8 units to the left. C. Take the graph of y = x2 and shift it 8 units to the right. D. Take the graph of y = x2 and shift it 8 units up.