Q3 A circuit with two outputs is defined by the logic functions f=xlx2'x3'x2'x4'+ x2'x3'x4 + x1x2x3x4 g xlx3'x4x1x2x4+x1'x3x4 + x2'x3x4' Derive a minimum-cost implementation of this circuit. What is the cost of your circuit? Q4 Repeat Problem Q3 for the functions f(x1+x2+x3') (x1+x3 + x4') (x1+x2' +x3)(x1'+ x2+x4)(x1+x2'+ x4') g (x1+x2+x3')(x1'+ x2 + x4') (x2' + x3' + x4')(x1 +x2'x3 + x4)