\(B = 3\sqrt {20} – 20\sqrt {\frac{1}{5}} – \frac{4}{{\sqrt 5 + \sqrt 3 }}\) A \(B = – \sqrt 3 \) B \(B = \sqrt 3 \) C \(B = 2\sqrt 3 \) D \(B = – 2\sqrt 3 \)
\(B = 3\sqrt {20} – 20\sqrt {\frac{1}{5}} – \frac{4}{{\sqrt 5 + \sqrt 3 }}\) A \(B = – \sqrt 3 \) B \(B = \sqrt …