1. Perform he indicated row operations on the matrix. Show the nal result. Add 7 times R1 to R2. AddStimesthoRg. 1 7 1 7 48 41 5 1 39 {1} 5 4 1 {3} 1 7 1 7 43 a 0 1 1 5 1 39 0 34 34 {2} 1 7 1 (4) 1 7 1 01 7 48 329 55 06 -33 24 2 194 2- Given: 7 3 2 3 6 5 A: ,3: and c=4, 6 6 S 3 l '5' determine 12/432. (1} 20 1143 632 4'83 [2] 1?64 1296 4UU 4296 l44 4900 {3) 252 4132 200 216 24 980 (4] Not possible 3. Write the augmented matrix for the system of linear equations. x + 4): z = 9 9y+4z=6 x +52=4 (1} 1 4 1[9 {3) 1 4 ll9 I 19 4 54 4.74:4; 11 5:41r 1 5H (2} 1 4 1[9 {4) I 4Il9 094i6 474054: 10 5H 15 0H 4. Evaluate the expression: 2 s ([6 41+1s 1]) 3 (1} -4 ]0 6 (2} 4 10 lo 25 6 15 (3} [4 10 6] 10 25 15 (4} Not Possible