Find the limit.
- x
A. 0
B. 6
C. 12
D. ?
Answer: B
Mathematics
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Find two paths of approach from which one can conclude that the function has no limit as (x, y) approaches (0, 0).f(x, y) = 
What will be an ideal response?
Mathematics
Find first four terms of the indicated expansion by use of the binomial series.(1 + x)-1/2
A. 1 + 
x + 
x2 + 
x3 + . . .
B. 1 + 
x - 
x2 + 
x3 - . . .
C. 1 - 
x + 
x2 - 
x3 + . . .
D. 1 - 
x + 
x2 - 
x3 + . . .
Mathematics
Solve the system of equations by the addition method.
A. 
B. infinite number of solutions
C. no solution
D. 
Mathematics
Find the center of the ellipse.
+ 
= 1
A. (0, 4) B. (5, 0) C. (0, 0) D. (5, 4)
Mathematics