Answer Happy

Find the total differential of the function f(x) = 2xsiny – 3x²y² . (4 siny - 6y²) dx + (2x cosy 6x²y) dy (2 siny – 6xy) dx + (2x cosy − 6y)dy (2 cosy 6xy²)dx + (2x siny – 6x²y)dy O (2 siny - 6xy²) dx + (2x cosy - 6x²y)dy O (3 siny - 6y2) dx + (x cosy − 3xy)dy