Differentiation and applications

The quotient rule

(* Ignore this section* - wk 3-4, 7I Q1-2) )

Please answer the questions on the attachment below. ( ON PAPER/WRITTEN ) ( Please keep solving and explanation seperate)

1 If y = x+3 is expressed as y = - , find: x+7 V a u and v b du and up dx d.x du dv V X u X C dy using the quotient rule, dy dx dx dx dx 2 If f ( x ) = x2 + 2x u (x ) 5 -x is expressed as f(x) = find: v(x) a u(x) and v(x) b u'(x) and v'(x) c f'(x) using the quotient rule