Practicing Success
If P : Q = 2 : \(\sqrt {3}\), then the value of (3P+Q) : (3P-2Q)? |
\(\frac{1}{24}\)(21 + 9 \(\sqrt {3})\) \(\frac{1}{12}\)(12 + 9 \(\sqrt {3})\) \(\frac{1}{4}\)(7 + 3 \(\sqrt {3})\) (21 + 9 \(\sqrt {3})\) |
\(\frac{1}{4}\)(7 + 3 \(\sqrt {3})\) |
P : Q = 2 : \(\sqrt {3}\) (3P+Q) : (3P-2Q) = \(\frac{3 × 2 + \sqrt {3}}{3 × 2 - 2\sqrt {3}}\) = \(\frac{6 + \sqrt {3}}{6 - 2\sqrt {3}}\) × \(\frac{6 + 2\sqrt {3} }{6 + 2\sqrt {3}}\) = \(\frac{1}{24}\)(36 + 12\(\sqrt {3}\) + 6\(\sqrt {3}\) + 6) =\(\frac{1}{24}\)(42 + 18\(\sqrt {3}\)) = \(\frac{1}{12}\)( 21 + 9\(\sqrt {3}\)) = \(\frac{1}{4}\)( 7 + 3\(\sqrt {3}\))
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