Cesareo R.

Retired engineer from Escola Politecnica do Estado de São Paulo, giving back a little of what received from magnificent brazilian teachers. Among others, Leo Borges Vieira and Abrahão de Moraes.

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Level 21 in Calculus Level 18 in Algebra Level 17 in Precalculus Level 15 in Geometry Level 15 in Physics Level 15 in Trigonometry Level 5 in Prealgebra Level 1 in Statistics