check the answers

VI = ( 1 , 1 , 1 , 1 ) V 2 = ( 1 , 0 , 1 10 ) V 3 = ( 0 , 1 , 0 , + ) so for checks orthogonality Vi. V2 = 0 V1 . V 2 = 14 = 0. V 2 - V3 = 0 +0 +0 to = 0 VI . V3 = 1- 11 = 0. so all three rectors are orthogonal for chuck orthonormal vectorset We can use the properties of orthonormality properties of orthonormality for toovector wit w 2 ( 1 ) w1 . W 2 = 0 ( 2 ) 11 W, 1 1 = 1/ W 2 11 = 1 so . Here WI = ( 1, 1 , 1 , 1 ) 11 vill 1 4 WI = W2 = VL ( 1 , 0 , 4, 0 ) 11 V/2 1) W2 = ( 72 1 0 , - V/2 10 ) 11 V 3 Il = (0 , 1 , 0 , 7 ) Was ( 0 , # , 0 , -#/2 )