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Find the value of

\[{\left( \sqrt { \sqrt { 81 } +\sqrt { 56 } } +\sqrt { \sqrt { 81 } -\sqrt { 56 } } \right) }^{ 2 } \]

Lynn has a calculator with only two buttons that perform \(\boxed{+1}\) and \(\boxed{\div 2}\).

She also has a screen with \(9\) significant figures, and it displays \(0\) when ...

The \(\triangle ABP\), \(\triangle BCQ\) and \(\triangle AQR\) satisfy the following:

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Recently, I've been messing around with factorials (mainly because I was just told that \(x! \approx (\frac{x}{e})^x\times\sqrt{2\pi x}\)). I came across a ...

Let \(a_1,a_2,...,a_9\) be reals such that ...

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