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Byju's Answer
Standard VIII
Mathematics
Difference of Two Sets
Solve:m-m-1 2...
Question
Solve:
m
-
(
m
-
1
)
2
=
1
-
(
m
-
2
)
3
Open in App
Solution
m
-
(
m
-
1
)
2
=
1
-
(
m
-
2
)
3
⇒
2
m
-
m
+
1
2
=
1
-
(
m
-
2
)
3
(
L
.
C
.
M
.
of
1
and
2
is
2
)
⇒
m
+
1
2
=
3
-
m
+
2
3
(
L
.
C
.
M
.
of
1
and
3
is
3
)
⇒
m
+
1
2
=
5
-
m
3
⇒
3
(
m
+
1
)
=
2
(
5
-
m
)
(
by
cross
multiplication
)
⇒
3
m
+
3
=
10
-
2
m
⇒
3
m
+
2
m
=
10
-
3
⇒
5
m
=
7
⇒
m
=
7
5
∴
m
=
7
5
Suggest Corrections
9
Similar questions
Q.
Solve each of the following equations. Also, verify the result in each case.
m
-
m
-
1
2
=
1
-
m
-
2
3
Q.
Calculate the Q-values of the following fusion reactions:
(a)
H
1
2
+
H
1
2
→
H
1
3
+
H
1
1
(b)
H
1
2
+
H
1
2
→
He
2
3
+
n
(c)
H
1
2
+
H
1
3
→
He
2
4
+
n
.
Atomic masses are
m
(
H
1
2
)
=
2
.
014102
u
,
m
(
H
1
3
)
=
3
.
016049
u
,
m
(
H
2
3
e
)
=
3
.
016029
u
,
m
(
H
2
4
e
)
=
4
.
002603
u
.
Q.
Find the total surface area of a cone whose radius is
12
m and the slant height is
23
m.
Q.
A man goes 12 due south and then 35 m due west. How far is he from the starting point?
(a) 47 m
(b) 23.5 m
(c) 23 m
(d) 37 m
