simplify the following by rationalising the denominator. 3/√48-√75
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5
+
18
7
3
−5
2
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Answer
Correct option is
D
30
114−41
6
48
+
18
7
3
−5
2
The conjugate of
48
+
18
is
48
−
18
=
48
+
18
7
3
−5
2
×
48
−
18
48
−
18
=
48−18
7
48×3
−7
3×18
−5
48×2
+5
18×2
=
30
7×12−7×3
6
−5×4
6
+5×6
=
30
114−41
6
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