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Math 12 Chapter 1
Functions & Limits
Test - 4
1.
If f(x) = f (-x) then it is called:
a) Odd function
b) Even function
c) Explicit function
d) Implicit function
2.
Cosh
2
x + Sinh
2
x =
a) Odd function
b) Cosh
2
x
c) None of these
d) 1
3.
lim
x
®
2
(3x+4/x+3) is
a) 1
b) 5
c) 1
d) 2
4.
If p(x) = a
n
X
n
+ a
n-1
X
n-1
+___________________. a
1
x + a
0
is a continuous function of degree n, then Lt
x
®
c
P(x) =
a) Zero
b) 5
c) P(C)
d) a
n
5.
If f(x) = 2x + 1 & g(x) = x
2
+ 2x -1 then (f-g)(x) is given by
a) -x
2
- 2
b) x
2
- 2
c) -x
2
+ 2
d) x
2
+ 2
6.
If h(x) = x+2 and j(x) = 4-x
2
, then (hj) (x) is given by:
a) x
2
- 6
b) -x
2
- 6
c) x
2
+ 6
d) -x
2
+ 6
7.
If g(x) = x
3
- x it is:
a) Odd function
b) Even function
c) Neither even or odd
d) None of them
8.
If a point (a,b) lies on the graph of the function which of the following point must lie on the graph of inverse of f.:
a) (b,a)
b) Odd function
c) (-a,b)
d) (a,-b)
9.
Lt
x
®
0
Sin px/qx =
a) Not defined
b) (b,a)
c) p/q
d) q/p
10.
If f(x) = x
Ö
x>
2
-4, then domain of f(x) is:
a) R- [2,-2]
b) p/q
c) R - {0}
d) R - {4}
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