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Byju's Answer
Standard XII
Mathematics
Integration Using Substitution
If m = 1/3 ...
Question
If
m
=
1
3
−
√
8
and
n
=
1
3
+
√
8
, find i
f
n
2
is equal to
17
−
6
√
m
, then value of m is?
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Solution
We rationalize the denominator,
n
=
1
3
+
√
8
×
3
−
√
8
3
−
√
8
n
=
3
−
√
8
9
−
8
n
=
3
−
√
8
1
.
∴
n
2
=
(
3
−
√
8
)
(
3
−
√
8
)
=
9
+
8
−
6
√
8
=
17
−
12
√
2
=
17
−
6
√
8
.
Thus the value of
m
from the above question is
8
.
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Similar questions
Q.
If
m
=
1
3
−
√
8
and
n
=
1
3
+
√
8
.
If
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+
6
√
n
, then value of
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is?
Q.
For
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