Rationalise the denominator 5/(√7+ 3√2)
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Answered by
2
Answer:
3
3
+
2
3
5
−
7
Multiply by 3
3
−
2
numerator and denominator both we get
=
(3
3
+
2
)(3
3
−
2
)
(3
5
−
7
)(3
3
−
2
)
=
(3
3
)
2
−(
2
)
2
3
5
×3
3
−
7
×3
3
+3
5
×−
2
−
7
×−
2
=
27−4
9
15
−3
21
−3
10
+
14
=
23
9
15
−3
21
−
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0
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