07) Let f(x) = x when x > 0
{ 0 when x = 0
-x when x < 0
Now f(x) is :
(a) Undefined at x = 0
(b) Continuous at x = 0
(c) Discontinuous at x = 0
(d) None of these
08) lim 4^(x+1) - 4
x→0 2x
(a) Does not exist
(b) Exists and is equal to 2
(c) Exists and is equal to 4 loge 2
(d) None of these
09) The function y = | x | is
(a) Discontinuous at x = 0
(b) Discontinuous every where.
(c) Continuous every where.
(d) Continuous every where except
x = 0
10) lim (a - bx) is equal to :
x→∞ x^2
(a) 1
(b) 0
(c) a
(d) -∞
11) The function f(x) = x^2 - 9 is undefined
x - 3
(a) 6
(b) 0
(c) 9
(d) 3
12) lim x→∞ sqrt(2x^2 + 3) equal to
4x + 1
(a) 1/2 sqrt(2)
(b) 2 sqrt(2)
(c) sqrt(2)
(d) 0
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