aubreystechschu6001 aubreystechschu6001 23-05-2023 Mathematics contestada Find the first and second partial derivatives of the following functions. (Each part should have six answers.) (a) f(x, y) = x² – xy² + y − 1 (b) g(x, y) = ln(x² + y²) (c) h(x, y) = sin(ex+y)