if a = 3 and `a_(7) = 33`, then `a_(11)` is

In an AP 7a_(7) = 11 a_(11) then a_(18) = ……….

If A=[[a_(11), a_(12), a_(13)], [a_(21), a_(22), a_(23)], [a_(31), a_(32), a_(33)]] and A_(ij) denote the cofactor of element a_(ij) , then a_(11)A_(21)+a_(12)A_(22)+a_(13)A_(23)=

If a_(n) be the term of an A.P. and if a_(7)=15 , then the value of the common difference that could makes a_(2)a_(7)a_(11) greatest is:

If lt a_(n) gt is an A.P. and a_(1) + a_(4) + a_(7) + "………." + a_(16)= 147 , then a_(1) + a_(6) + a_(11) + a_(16) equals :

If A=[a_(i j)] is a 3xx3 diagonal matrix such that a_(11)=1 , a_(22)=2 and a_(33)=3 , then find |A| .

If A=[a_(i j)] is a 3xx3 diagonal matrix such that a_(11)=1 , a_(22)=2 and a_(33)=3 , then find |A| .

If A=[[a_(11), a_(12), a_(13)], [a_(21), a_(22), a_(23)], [a_(31), a_(32), a_(33)]] and a_(ij) denote the cofactor of element A_(ij) , then a_(11)A_(11)+a_(12)A_(12)+a_(13)A_(13)=

If a_(n) = (n - 3)/4 , then find a_(11),a_(15) and hence find a_(15)/a_(11) .

Three positives integers a_(1),a_(2),a_(3) are in A.P. , such that a_(1)+a_(2)+a_(3)= 33 and a_(1) xx a_(2) xx a_(3) = 1155 . Find the intergers a_(1),a_(2),a_(3) .

a_(1),a_(2),a_(3),a_(n) are in A.P.and a_(1)+a_(3)+a_(5)+a_(7)+a_(9)=20 then a_(5) is 2 .7 3.34.45.5