If `A=[[3k,0],[k,k]]` and `A^(-1)=[[1,0],[-1,3]]`, then the value of k is equal to

If 5^(-k) = 1/l , then the value of 5^(3k) is equal to :

(A) "4],[" 2.If " A=[[k,1,0],[3,5]]" is a singular matrix,then the value of "k" is equal to: "],[[" (A) "0," (B) "6," (C) "-6," (D) "6]]

If "|[1,k,3],[3,k,-2],[2,3,-1]| =0," then the value of "k" is

If |[3,-1],[1,k]|=0 then k is equal to?

If k-1,k+1 and 2k+3 are in AP , then the value of k is

If sum_(k=0)^(n)(k^(2)+k+1)(k!)=(2018)(2018!) then the value of n is equal to

If k,k+1,k+3 are in G.P then find the value of k

If sum_(k=0)^(18)(k)/(18C_(k))=a sum_(k=0)^(18)(1)/(18C_(k)) , then the value of a is equal to

If 1.125xx10^(k)=0.001125, then the value of k is: -4(b)-3(c)-2(d)-1