User André Nicolas - MathOverflow

André Nicolas

Member for 11 years, 1 month
Last seen more than 5 years ago

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530

Why can ALL quadratic equations be solved by the quadratic formula?

502

Is the following matrix invertible?

230

Infiniteness of non-twin primes.

203

How I can prove that the sequence $\sqrt{2} , \sqrt{2\sqrt{2}}, \sqrt{2\sqrt{2\sqrt{2}}}$ converges to 2?

172

Can you raise a number to an irrational exponent?