Find the 1st derivative of the following. Differentiate implicitly. Simplify your final answer but no need to get the LCD in the final answer. 1) -4x2y3+ y = (2x+2y)8 2) sin(2y)+x= 1 y4 3) 10e(y)= x-2y (in the right expression, apply quotient rule) y 4) xy + cot(x) tan(3y) = x - y