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Byju's Answer
Standard IX
Mathematics
Rationalisation
The value of ...
Question
The value of a if
5
+
√
3
7
−
4
√
3
=
a
+
√
3
b
is
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Solution
Given
5
+
√
3
7
−
4
√
3
=
a
+
√
3
b
⟹
a
+
√
3
b
=
(
5
+
√
3
)
(
7
+
4
√
3
)
(
7
−
4
√
3
)
(
7
+
4
√
3
)
=
35
+
7
√
3
+
20
√
3
+
12
49
−
48
=
47
+
27
√
3
⟹
a
=
47
,
b
=
27
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12
Similar questions
Q.
Find the value of a and b
5+✓3/7-4✓3=a+✓3b
Q.
Determine
a
and
b
if
5
+
√
3
7
−
4
√
3
=
94
a
+
3
√
3
b
Q.
If
a
b
=
7
3
, then find the value of
5
a
+
3
b
5
a
−
3
b
.
Q.
A, B, C are three sets of values as given below:
A : 2, 3, 7, 1, 3, 2, 3
B : 7, 5, 9, 12, 5, 3, 8
C : 4, 4, 11, 7, 2, 3, 4
Which one of the following statements is correct?
Q.
If
3
8
=
a
10
+
b
100
+
c
1000
find the value of a , b and c
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