EXERCISE I (A) (CLASS WORK) 1 -1 0 0 2 4 with their Elements of cofactors and choose the correct answer (EAMCET-2004 Element Co factor D-1 ID 1 b) 32 LID 3 c) 4 IV) 6 d) 6 e) -6 2) b, d, c, a 1) b, d, a, c 4) d, a, b, c 3) d, b, a, c

If a: b= 2: 3, b: c= 4: 5 and c: d= 6: 7 , find : a: b: c:d .

Match the following and choose the correct combination from the options given : (a) {:(A, B, C, D),(3 , 1, 5, 4):} (b) {:(A, B, C, D),(1, 2, 3, 4):} (c) {:(A, B, C, D),(2, 1, 3, 4):} (d) {:(A, B, C, D),(3, 1, 5, 2):}

Match the column A with column B and choose the correct option. (A) (a - 2), (b - 3), (C-5), (d - 4), (e - 1) (B) (a - 2), (b-5), (C-3), (d - 4), (e - 1) (C) (a - 1), (b - 3), (C-5), (d - 4), (e - 2) (D) (a - 1), (b - 5), (C-3), (d - 4), (e - 2)

Match the following and choose the correct option. (A) (a - 4) (b - 3) (C-5) (d - 2) (e - 1) (B) (a - 5) (b - 4) (c - 2) (d - 1) (e - 3) (C) (a - 4) (b - 5) (C - 2) (d - 1) (e - 3) (D) (a - 5) (b - 3) (c - 2) (d - 1) (e - 4)

Match the following list of animals with their level of organisation. (A) (a - 2), (b - 3), (C-4), (d - 1) (B) (a - 2), (b - 4), (C-3), (d - 1) (C) (a - 4), (b - 1), (C-2), (d - 3) (D) (a - 1), (b - 4), (C-3), (d - 2)

If a : b = c : d , prove that : (6a + 7b) (3c - 4d) = (6c + 7d) (3a - 4b) .