If `a=7` and `a_13=35`, then find `d and S_13`.

In an AP : Give a = 7 , a_(13)= 35 , find d and S_(13) .

In an A.P: given a= 7 , a_(13)=35 , find d and S_(13)

In an AP:(ii) given a=7, a_13=35 ,find d and S_13 .

In an A.P. (with usual notations) : (i) given a = 7, a_13 = 35, find d and S_13

In an AP : given a = 7, a_(13) = 35 , find d and S_(13) .

In an AP: (ii) Given a = 7, a_(13) = 35 , find d and S_(13) .

In an AP :- given a = 7, a_13 = 35 find d and S_13 .

Find minors and cofactors of the elements a_11 and a_21 in the determinant triangle = |[a_11,a_12,a_13],[a_21,a_22,a_23],[a_31,a_32,a_33]|

If A = { 3, 5, 7, 9, 11 }, B = {7, 9, 11, 13}, C = {11, 13, 15}andD = {15, 17}, find:- A nn D