Symbiosis National Aptitude Test SNAP 2016 Paper

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Question : 8 of 150

Marks: +1, -0

If X= 2 +

√3

, then the value of

√x+ 1/√x

is

$√3$
$√6$
$2√6$
6

Solution:

Let X =

2+√3

=

{4+2√3}/2

=

[{√3+1}/√2]^2

So,

√X+1/√X

=

{√3+1}/√2+√2/{√3+1

=

{6+2√3}/{√2(√3+1)}

=

√6

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