Write the expression in the standard form a + bi.If w = 9 + 2i, evaluate w - 
.
A. 18
B. 4i
C. -18 + 4i
D. 0
Answer: B
Mathematics
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Find the derivative of the function at P0 in the direction of u.f(x, y, z) = 10x - 2y + 2z, P0(-3, -10, -4), u = 3i - 6j - 2k
A. 
B. 
C. 
D. 
Mathematics
Find the value of the trigonometric function.csc (68.48°)
A. -1.075 B. 2.726 C. -2.726 D. 1.075
Mathematics
Simplify the expression. The result will be one of sin x, cos x, tan x, cot x, sec x, csc x.
A. csc x B. sin x C. sec x D. cos x
Mathematics
Write the mass of Pluto, which is approximately 14,000,000,000,000,000,000,000 kg, in scientific notation.
Mathematics