Simplified form of 2 √a + 4 √(b ) is ……………….
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Answer:
4−
5
4+
5
=
(4−
5
)
(4+
5
)
(4+
5
)
(4+
5
)
...... rationalizing numerator and the denominator
=
16−5
(4+
5
)
2
=
11
(4+
5
)
2
4+
5
4−
5
=
(4+
5
)
(4−
5
)
(4−
5
)
(4−
5
)
...... rationalizing numerator and the denominator,
=
16−5
(4−
5
)
2
=
11
(4−
5
)
2
4−
5
4+
5
+
4+
5
4−
5
=
11
(4+
5
)
2
+(4−
5
)
2
=
11
16+5+16+5
=
11
42
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