Pergunta de entrevista da empresa Jane Street
What is 38 squared?
Respostas da entrevista
Sigiloso
21 de dez. de 2011
If it's meant to be done mentally, it might be best to think of it as 38*38 = (40-2)*(40-2) = 1600 - 2*80 + 4 = 1444 or something along those lines..
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