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Ramesh

· started a discussion

· 1 Months ago

issue (Question: 45336.0 )

can anyone please explain clearly

Question:
What should come in place of the question mark (?) in the following question?

\(\big( \sqrt[]{3}-2 \big)^2=?-\sqrt[]{12}-\sqrt[]{36}\)  
Options:
A) \(13-2\sqrt[]{3}\)
B) 13
C) \(13-4\sqrt[]{3}\)
D) 1
E) None of these
Solution:

kanhaiya jha

· commented

· 1 Months ago

(√3−2)^2=?−√(12)−√(36)
Apply formula,
(a-b)^2 = a^2 -2ab + b^2
Take a=√3 and b=2
3+4-4√3 = ? - 2√3 - 6
?=13-2√3
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