EduSahara™ Assignment
Name : Base Powers Miscellaneous
Chapter : Exponents and Powers
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
Which of the following statements are true?
a)
a
0
=
1
(
a
≠
0)
b)
a
.
x
m
=
a
m
.
x
m
c)
a
m
.
a
n
=
a
m
n
d)
(
x
m
)
n
=
x
(
m
+
n
)
e)
(
x
m
)
n
=
(
x
n
)
m
f)
x
m
x
n
=
x
m
n
(i)
{a,e}
(ii)
{b,e,a}
(iii)
{b,a}
(iv)
{d,f,a}
(v)
{c,e}
Question
2
2.
Simplify
(
4
b
.
25
(
b
−
5
)
.
36
(
b
−
2
)
16
(
b
−
5
)
.
5
(
b
−
2
)
.
6
(
b
−
5
)
)
(i)
4
5
.
5
(
−
3
)
.
6
3
(ii)
4
(
−
b
+
10
)
.
5
(
−
b
−
1
)
.
6
(
−
b
+
8
)
(iii)
4
(
−
b
+
10
)
.
5
(
b
−
8
)
.
6
(
b
+
1
)
(iv)
4
(
b
+
5
)
.
5
(
−
b
−
1
)
.
6
(
−
b
+
8
)
Question
3
3.
-1
8
=
(i)
0
(ii)
-1
(iii)
undefined
(iv)
∞
(v)
1
Question
4
4.
-1
5
=
(i)
0
(ii)
∞
(iii)
undefined
(iv)
-1
(v)
1
Question
5
5.
8
0
=
(i)
0
(ii)
undefined
(iii)
1
(iv)
∞
(v)
-1
Question
6
6.
0
0
=
(i)
0
(ii)
∞
(iii)
-1
(iv)
1
(v)
undefined
Question
7
7.
-4
0
=
(i)
1
(ii)
-1
(iii)
0
(iv)
∞
(v)
undefined
Question
8
8.
0
1
=
(i)
undefined
(ii)
-1
(iii)
0
(iv)
1
(v)
∞
Question
9
9.
Find the reciprocal of
4
9
(i)
8
(
1
4
)
(ii)
10
(
1
4
)
(iii)
9
(
1
4
)
(iv)
9
(
-1
4
)
(v)
9
(
3
4
)
Question
10
10.
Find the reciprocal of
3
(
-3
7
)
(i)
4
(
-7
3
)
(ii)
2
(
-7
3
)
(iii)
(-3)
3
(iv)
3
(
-7
3
)
(v)
3
(
-5
3
)
Question
11
11.
(
4
2
✕
9
4
)
5
=
(i)
4
2
✕
9
4
(ii)
4
2
✕
9
20
(iii)
4
10
✕
9
4
(iv)
4
20
✕
9
10
(v)
4
10
✕
9
20
Question
12
12.
(
2
(-2)
)
4
✕
(
4
(-5)
)
-4
✕
(
5
(-6)
)
5
(
2
(-5)
)
-2
✕
(
4
(-2)
)
-4
✕
(
5
6
)
3
=
(i)
2
(-18)
✕
4
13
✕
5
(-48)
(ii)
2
(-18)
✕
4
12
✕
5
(-48)
(iii)
2
(-18)
✕
4
12
✕
5
(-47)
(iv)
2
(-17)
✕
4
12
✕
5
(-48)
Question
13
13.
[
(
3
3
)
2
✕
(
3
3
)
2
]
÷
3
12
(i)
2
(ii)
1
(iii)
0
(iv)
3
(v)
4
Question
14
14.
[
-3
(
6
7
)
✕
-3
(
3
5
)
]
÷
[
3
(
7
6
)
✕
3
(
5
3
)
]
=
(i)
3
5
(ii)
(-1)
(iii)
0
(iv)
6
7
(v)
1
Assignment Key
1) (i)
2) (iii)
3) (v)
4) (iv)
5) (iii)
6) (v)
7) (i)
8) (iii)
9) (iii)
10) (iv)
11) (v)
12) (ii)
13) (ii)
14) (v)
