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)
(
x
m
)
n
=
x
(
m
+
n
)
b)
x
m
x
n
=
x
m
n
c)
a
m
.
a
n
=
a
m
n
d)
a
0
=
1
(
a
≠
0)
e)
(
x
m
)
n
=
(
x
n
)
m
f)
a
.
x
m
=
a
m
.
x
m
(i)
{d,e}
(ii)
{b,e}
(iii)
{a,d}
(iv)
{c,f,d}
(v)
{a,e,d}
Question
2
2.
Simplify
(
5
j
.
36
(
j
−
3
)
.
49
(
j
−
2
)
25
(
j
−
3
)
.
6
(
j
−
2
)
.
7
(
j
−
1
)
)
(i)
5
(
−
j
+
6
)
.
6
(
j
−
4
)
.
7
(
j
−
3
)
(ii)
5
(
j
+
3
)
.
6
(
−
j
+
1
)
.
7
(
−
j
)
(iii)
5
3
.
6
(
−
1
)
.
7
(
−
1
)
(iv)
5
(
−
j
+
6
)
.
6
(
−
j
+
1
)
.
7
(
−
j
)
Question
3
3.
-1
10
=
(i)
0
(ii)
undefined
(iii)
1
(iv)
-1
(v)
∞
Question
4
4.
-1
5
=
(i)
∞
(ii)
1
(iii)
0
(iv)
undefined
(v)
-1
Question
5
5.
6
0
=
(i)
0
(ii)
∞
(iii)
1
(iv)
undefined
(v)
-1
Question
6
6.
0
0
=
(i)
undefined
(ii)
0
(iii)
∞
(iv)
-1
(v)
1
Question
7
7.
-4
0
=
(i)
∞
(ii)
-1
(iii)
undefined
(iv)
0
(v)
1
Question
8
8.
0
5
=
(i)
-1
(ii)
1
(iii)
0
(iv)
∞
(v)
undefined
Question
9
9.
Find the reciprocal of
9
8
(i)
8
(
1
3
)
(ii)
9
(
1
9
)
(iii)
8
(
1
9
)
(iv)
8
(
-1
9
)
(v)
7
(
1
9
)
Question
10
10.
Find the reciprocal of
5
(
-6
5
)
(i)
5
(
-1
2
)
(ii)
6
(
-5
6
)
(iii)
4
(
-5
6
)
(iv)
5
(
-7
6
)
(v)
5
(
-5
6
)
Question
11
11.
(
7
5
✕
2
8
)
7
=
(i)
7
56
✕
2
35
(ii)
7
5
✕
2
8
(iii)
7
5
✕
2
56
(iv)
7
35
✕
2
56
(v)
7
35
✕
2
8
Question
12
12.
(
9
(-3)
)
2
✕
(
11
(-6)
)
5
✕
(
12
(-5)
)
-6
(
9
5
)
4
✕
(
11
4
)
6
✕
(
12
6
)
2
=
(i)
9
(-26)
✕
11
(-54)
✕
12
19
(ii)
9
(-26)
✕
11
(-53)
✕
12
18
(iii)
9
(-26)
✕
11
(-54)
✕
12
18
(iv)
9
(-25)
✕
11
(-54)
✕
12
18
Question
13
13.
[
(
6
5
)
3
✕
(
6
2
)
3
]
÷
6
21
(i)
1
(ii)
6
(iii)
0
(iv)
4
(v)
2
Question
14
14.
[
-7
(
9
2
)
✕
-7
(
6
4
)
]
÷
[
7
(
2
9
)
✕
7
(
4
6
)
]
=
(i)
9
2
(ii)
0
(iii)
(-1)
(iv)
6
4
(v)
1
Assignment Key
1) (i)
2) (i)
3) (iii)
4) (v)
5) (iii)
6) (i)
7) (v)
8) (iii)
9) (iii)
10) (v)
11) (iv)
12) (iii)
13) (i)
14) (v)
