24.Which of the following sets of vectors given below may have zero resultant?
(1) `12,14,28`
(2) `14,18,36`
(3) `11,22,17`
(4) `0.5,1,2`

Which ofthe sets given below may represent the magnitydes of three vectors adding to zero? (A) 2,4,8(B)4,8,16(C)1,2,1 (D) 0.5,1,2

Which one of the following is the mean of the data given below? |{:(x_(i)" "6,10,14,18,24,28,30),(f_(i)" "2,4,7,12,8,4,3):}|

Which of the following sequences are arithmetic progressions? Justify. (i) 2,6,10,14,………… (ii) 24,21,18,15,…… (iii) 4,12, 36, 108,………. (iv) 1,3/2, 2,5/2 ………. (v) -50, -75, -100 ……… (vi) 12, 2, -8, -18 ,…….. , (vii) 1, 3, 6,10 ,........... (viii) 1,4, 7,10 ,............

In each of the following questions select the missing number from the given responses. {:(14,10,22),(2,3,4),(7,3,11),(4,10,?):}

Find the inverse of each of the matrices given below : [(0,0,-1), (2,-1,4),(-2,-4,-7)]

Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range: (i) {(2,1), (3,1),(4,2)} (ii) {(2,2),(2,4),(3,3),(4,4)} (iii) {(2,1),(5,1),(8,1),(11,2),(14,2),(17,2)} (iv) {(1,2),(2,3),(3,4),(4,5),(5,6),(6,7)} (v){(2,1),(4,2),(6,3),(8,4),(10,5)} (vi) {(1,2),(2,3),(3,4),(3,5),(3,7),(4,8)}

Which of the following relations are functions? Give reasons. If it is a function, determine its domain and range. (i) {(2,1),(5,1),(8,1),(11,1),(14,1),(17,1)} (ii) {(2,1),(4,2),(6,3),(8,4),(10,5),(12,6),(14,7)} (iii) {(1,3),(1,5),(2,5)}

Find the inverse of each of the matrices given below : [(2,-1,4),(-3,0,1),(-1,1,2)]

Which of the following are identity relations on set A={1,2,3} R_(1)={(1,1),(2,2)},R_(2)={(1,1),(2,2),(3,3),(1,3)},R_(3)={(1,1),(2,2),(3,3)}