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Find number abc

If ca3a9 - c3b41 = 1a1b find number abc. Multiple solutions may exist.

Correct answers: 21

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One summer evening during a vi...

One summer evening during a violent thunderstorm a mother was tucking her small boy into bed. She was about to turn off the light when he asked with a tremor in his voice, "Mommy, will you sleep with me tonight?"
The mother smiled. "I can't dear," she said. 'I have to sleep in Daddy's room."
The little boy replied with a shaking voice, "The big sissy."

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Johan van Waveren Hudde

Died 15 Apr 1704 at age 75 (born 23 Apr 1628).Dutch mathematician and statesman who, after an education in law, became interested in mathematics, though for a limited time (1654-63). He worked on improving the algebraic methods of René Descartes, seeking to extend them to the solution of equations of a higher degree by applying an algorithm. He also developed an algorithm based on Fermat's method to deal with the maxima, minima and tangents to curves of algebraic functions. Later, he served as burgomaster of Amsterdam for 30 years. During this time time he made a mathematical study of annuities. Hudde continued with an interest in physics and astronomy, producing lenses and microscopes. He collaborated with Baruch Spinoza, of Amsterdam, on telescopes. Hudde determine that in a telescope, a plano-convex lenses were better than concavo-convex .«

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