Basic of Logarithms
medium

$\sqrt {[12\sqrt 5 + 2\sqrt {(55)} ]} $ નું વર્ગમૂળ મેળવો.

A

${5^{1/2}}[\sqrt {(11)} + 1]$

B

${5^{1/2}}[\sqrt {(11)} - 1]$

C

${5^{1/4}}[\sqrt {(11)} + 1]$

D

${5^{1/4}}[\sqrt {(11)} - 1]$

Solution

(c) $\sqrt {12\sqrt 5 + 2\sqrt {55} } = \sqrt {\sqrt 5 (12 + 2\sqrt {11} )} $
 

$ = {5^{1/4}}\sqrt {11 + 1 + 2\sqrt {11} } = {5^{1/4}}(\sqrt {11} + 1)$

Standard 11
Mathematics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.