Let (m × n) denote a matrix of size m × n. Find the size of the following product, or state that the product is not defined.(1 × 1)(2 × 1)
A. 2 × 1
B. not defined
C. 2 × 2
D. 1 × 2
Answer: B
Mathematics
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Evaluate the integral.
A. - 
i + 
(2
- 1) j
B. 7
j
C. - 
+ 
(2
- 1)
D. - 
i + 
(2
- 1) j
Mathematics
Evaluate the integral. 
A. ln 
- 
+ C
B. 
- 5 sec -1 
+ C
C. 
- 5 sec -1 
+ C
D. ln 
- 
+ C
Mathematics
Solve the inequalities
Mathematics
Use common or natural logarithms to solve the exponential equation symbolically.3x = 9
A. x = ln 3
B. x = 
C. x = ln 6
D. x = ln 
Mathematics