Question

if x= 13-4√3 then √x=?​

Answer 1

X = 13 - 4√(3) = (2√(3))² - 2. 2√(3). 1 + 1² = ( 2√(3) - 1 ) ²

So, √(x) =√( 2√(3) - 1 ) ² = 2√(3) - 1

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