Use the truth tree solve Q8 and 9 please. Thank you

1.8 QUESTION 8 Using a truth tree, determine whether the argument is: [1] Invalid, A = T, B-T, C-T, D-F [2] Invalid, A = T, B-F, C-F, D-F (3) Invalid, A-F,B=F,C=F, D = F (4] Valid 1.9. QUESTION 9 Using a truth tree, determine whether the argument is: [1] Invalid, A = T, B = F, C = T, D = T /2] Invalid. A = T, B = F, C F, D F 31 Invalid, A = T, B T, C = T, D = F [4] Valid