Evaluate the determinant.
A. a2 - b2
B. 2ab
C. 0
D. a2 + b2
Answer: A
Mathematics
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Multiply.
A. x2 - 
x - 
B. x2 - 
x + 
C. x2 + 
D. x2 - 
x + 
Mathematics
Find the flux of the curl of field F through the shell S.F = (9 - y)i + (7 + x)j + z5k; S is the upper hemisphere of x2 + y2 + z2 = 25
A. 50? B. -4? C. 2? D. 100?
Mathematics
Divide. Simplify, if necessary.
÷ 
A. 39
B. - 
C. - 
D. - 
Mathematics
Add or subtract as indicated.8.685 - 7.708
A. 15.393 B. 16.393 C. 0.977 D. 1.077
Mathematics