If y = 5, then what is the value of \(10y\sqrt {{y^3} - {y^2}} \) = ?
\(50\sqrt 2 \)
100
\(200\sqrt 5 \)
500
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The smallest natural number which is a perfect square and which ends in 3 identical digits lies between ?
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2
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Which number can replace both the question marks in the equation
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3
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How many perfect squares lie between 120 and 300 ?
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4
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5
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If \(x = \frac{{\sqrt 3 + 1}}{{\sqrt 3 - 1}} \) \(y = \frac{{\sqrt 3 - 1}}{{\sqrt 3 + 1}}\)and then the value of \(\left( {{x^2} + {y^2}} \right)\) is?
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