Determine whether the two matrices are inverses of each other by computing their product.
, 
A. No
B. Yes
Answer: A
Mathematics
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Solve the problem.The Celsius temperature at a point (x,y) on a large metal plate is given by T(x, y) = 80 + (x + 1)2(y - 2)2 + (x-2)2 .Find the direction of heat flow in the plate at the point (2, 1). Heat flows in the direction of steepest temperature decrease.
A. In the direction 
B. In the direction 
C. In the direction 
D. In the direction 
Mathematics
Solve the problem.Evaluate 
, where k is a positive integer.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If PN = 3PN-1 and P4 = 108, then P1 =
A. 12. B. 324. C. 2916. D. 4. E. 3.
Mathematics
Divide.
A. 294 B. 314 R 21 C. 309 R 13 D. 304
Mathematics