Write the maxterm and minterm for the function when, and .

For $A=1, B=1, C=0, D=1$: reading ABCD as binary $1101 = 13$ in decimal. Minterm ($m_{13}$): uncomplemented literal for 1, complemented for 0: $m_{13} = ABC'D$ Maxterm ($M_{13}$): complemented literal for 1, uncomplemented for 0 (reverse convention): $M_{13} = A'+B'+C+D'$