SOLUTION: One famous mathematician said that he was n years old in the year n2. It is known that he died in 1871. When was he born ?

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Question 1126192: One famous mathematician said that he was n years old in the year n2. It is known that he died in 1871. When was he born ?
Answer by ikleyn(52787) About Me  (Show Source):
You can put this solution on YOUR website!
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He was 43 years old in the year  1849 = 43%5E2.


Hence, he was born in the year  1849 - 43 = 1806.


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Augustus De Morgan (27 June 1806 – 18 March 1871) was a British mathematician and logician. 
He formulated De Morgan's laws and introduced the term mathematical induction, making its idea rigorous.


See this Wikipedia article :  https://en.wikipedia.org/wiki/Augustus_De_Morgan