SSC CGL 1 Sep 2016 Paper

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Question : 59 of 100

Marks: +1, -0

The value of

({2+√3}/{2-√3}-4√3)^2

is

36
36 $√3$
49
49 + $√3$

Solution:

Expression
=

({2+√3}/{2-√3}-4√3)^2

=

\{({2+√3}/{2-√3}×{2+√3}/{2+√3})-4√3\}^2

=

\{(2+√3)^2/{4-3} - 4√3\}^2

=

(4+4√3+3-4√3)^2

=

7^2

= 79

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