`1:4/9:2/3=`

Radius ratio corresponding to first,second and third orbit in H-atom is r_(1):r_(2):r_(3) is 1:1:1 1:4:9 1:2:3 1:9:8

If A.M : G.M = 13 : 12 for the two positive numbers, then the ratio of the numbers is 4:1 4:9 3:4 2:3

Find matrix A , if [1 2-1 0 4 9]+A=[9-1 4-2 1 3] .

If [9-1 4-2 1 3]=A+[1 2-1 0 4 9] , then find matrix Adot

9,-1,4-2,1,3]]=A+[[1,2,-10,4,9]], then

Find the common difference of A.P 4(1/9), 4(2/9), 4(1/3) …………

1) -4+9 2) -15+8 3) -1/2+3/4 4) -9+4 5) -8+15 6) -3/4+1/2

Solve and verify the following equations (x/3)-2 1/2= ((4x)/9)-((2x)/3)