Find the inverse matrix of A.A = 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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5
- 2
A. 55
B. -35
C. 35
D. -55
Mathematics
Provide an appropriate response.The least common denominator of 
, 
, 
, and 
is:
A. 6 B. 3 C. 12 D. 4
Mathematics
Rewrite the equation in a rotated x'y'-system without an x'y' term. Express the equation involving x' and y' in the standard form of a conic section.x2 + xy + y2 - 3y - 6 = 0
A. 
+ 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. y'2 = -18x'
Mathematics
Evaluate the expression using the given values.
; x = 5, y = 7
A. 26 B. 10 C. 31 D. 13
Mathematics