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Question

Simplify by rationalising the denominator:
735248+18

A
11441630
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B
114+41630
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C
11441630
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D
114+41630
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Solution

The correct option is A 11441630
As given 735248+18

48+18=16×3+9×2=43+32

735248+18=735243+32

=735243+32×43324332 [By rationalising]
=73×4373×3252×43+52×32(43)2(32)2

=28×3216206+15×216×39×2

=84+3041630

=11441630


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