Find the divergence of the field F.F = 2x7i + 2xyj + 3xzk
A. 19
B. 14x6 + 5x + 19
C. 14x6 + 2y + 3z
D. 14x6 + 5x
Answer: D
Mathematics
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Find an approximate value for the integral, using the trapezoidal rule with n intervals. Round the answer to the nearest tenth if necessary.
, n = 2
A. 4.1 B. 2.5 C. 0.1 D. 2.4
Mathematics
Find at least three nonzero terms [including a0, at least two cosine terms (if they are not all zero) and at least two sine terms (if they are not all zero)] of the Fourier series for the given function.f(x) = 
A. f(x) = 7 - 
B. f(x) = -7 + 
C. f(x) = -7 - 
D. f(x) = -7 - 
Mathematics
Solve the rational equation.
+ 
= 
A. 5, -5 B. 5 C. -5 D. empty set
Mathematics
Use a calculator to give the real number value. Round the answer to 7 decimal places.y = cos-1(0.8910)
A. 0.4712533 B. 0.5063492 C. 1.1000010 D. 0.4365083
Mathematics