9514 1404 393
Answer:
a) -1
b) 4A -3
Explanation:
a) The function for x < 2 simplifies to ...
f(x) = (x -3)(x -2)/(x -2)
f(x) = x -3
Then f(2-) = 2 -3 = -1
The limit is -1.
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b) The value for x=2 is ...
f(2) = A(2^2) -4(2) +5
f(2) = 4A -3 . . . . the limit at x→2+