Find the indicated vector.Let u = 
. Find 8u.
A. 
B. 
C. 
D. 
Answer: A
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Find the value of df-1/dx at x = f(a).f(x) = 4x2, x ? 0, a = 6
A. 
B. 
C. 
D. 48
Solve the problem.A triangle has a base of length x + 2 and a height of x + 8 and has an area of 36 square units. Find the base and height. (A = 
bh)
A. base = 4 units; height = 9 units B. base = 6 units; height = 12 units C. base = 8 units; height = 9 units D. base = 6 units; height = 6 units
Two sides and an angle are given. Determine whether the given information results in one triangle, two triangles, or no triangle at all. Solve any triangle(s) that results.b = 3, c = 4, B = 65°
A. one triangle B = 33°, A = 82°, a = 7 B. one triangle C = 34°, A = 81°, a = 11 C. one triangle C = 32°, A = 83°, a = 9 D. no triangle
Rewrite with only sin x and cos x.sin 2x - cos x
A. cos x (2 sin x - 1) B. 2 sin x C. sin x D. 2 sin x cos2 x