help please

[skihobbes]

what the heck is this...when is this used??? I think what they are asking is which is greater...column a or b

[windu]

Column A reduces to 1.

Since we know that a > 0 and nothing else, you cannot answer this question.
Ex)
let a = 1
then columna A = column B
let a=0.5
then column A > column B
let a=6
then column A < column B

I hope this helps!

[Naseer Asif]

Since c=(16 Pi a^2 b)/(9 a^2)

=(16 Pi b)/9 by cancelling a^2

=> 1=(16 Pi b)/(9 c)

=> (+ or -)1=Sqrt[(16 Pi b)/(9 c)]

Since "a" is arbitrary +ve number, and column A is either +1 or -1, So Columns A and B are not comparable.