Let f\x,yz) be a combinational circuit whose output is equal to 1 if the input variables have even number of 1's. the output is o otherwise, (a) (1 point) Draw the truth table for a 3-input circuit f(x,y,z) (b) (2 points) Using the truth table, derive a circuit for f that uses ONE 8-to-1 multiplexer (b) (2.5 points) Using Shannon's expansion, derive a circuit for f that uses ONE 2-to-1 multiplexer