, 08.11.2019 05:31, peagwatyourservice

# Find from first principle the derivatives of 2x+3​

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Mathematics, 21.06.2019 13:30, DivineMemes420
Since f(x, y) = 1 + y2 and "∂f/∂y" = 2y are continuous everywhere, the region r in theorem 1.2.1 can be taken to be the entire xy-plane. use the family of solutions in part (a) to find an explicit solution of the first-order initial-value problem y' = 1 + y2, y(0) = 0.