Find 
by using the Chain Rule. Express your final answer in terms of t.w = x + tan-1(xy), x = t + 3, y = 2t2
A. 
B. 1 + 
C. 1 - 
D. 1 + 
Answer: D
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Determine if the given value is a solution to the equation. -8.6q + 1.3 = -45.6 - 1.9q; 5.5
A. Not a Solution B. Solution
For the smooth curve r(t), find the parametric equations for the line that is tangent to r at the given parameter value 
r(t) = (3 sin t)i - (8 cos 3t)j +e-7tk ; to = 0
A. x = 3, y = -8t, z = -7 + t B. x = 3t, y = -8, z = 1 - t C. x = 3t, y = 8, z = 1 + t D. x = 3t, y = -8, z = 1 - 7t
Find ? for 0° ? ? < 360°.csc ? = 1.441
A. 43.94°, 136.06° B. 43.94°, 316.06° C. 55.24°, 235.24° D. 46.06°, 313.94°
Find the distance between the pair of points. Give your answer in exact form and where appropriate find an approximation to three decimal places.(-3, -4) and (7, 1)
A. 75
B. 75
? 129.904
C. 5
? 11.18
D. 5