The simplified value of (\sqrt3 + 1)(10 + \sqrt12) (\sqrt12 –2){5 - \sqrt3} is

RRB Non Technical Model Papers 6 with solutions

Question : 79 of 100

Marks: +1, -0

The simplified value of

(√3 + 1)(10 + √12) (√12 –2){5 - √3}

Solution:

(√ 3 +1)(10 + √12)( √12 - 2)(5 -√ 3)

=( √3 +1)(10 +2√ 3)(2 √3- 2)(5- √3)

= (√ 3 +1) × 2(5 + √3) × 2( √3 -1) × (5 - √3)

= 4(3 - 1)× (25 - 3) = 176

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