rationalise the following: 1/ √3-√2+1
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Answer:
ANSWER
We have
3
+
2
−1
1
=
3
+
2
−1
1
×
3
+
2
+1
3
+
2
+1
=
(
3
+
2
)
2
−1
3
+
2
+1
=
3+2+2
6
−1
3
+
2
+1
=
4+2
6
3
+
2
+1
×
2
6
−4
2
6
−4
=
24−16
(
3
+
2
+1)(2
6
−4)
=
8
2
2
+2
6
−4
=
4
2
+
6
−2
Which is the required answer.
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