by Guest » Wed Sep 24, 2014 3:33 pm
The question as presented by Guest1 is as below.....
x=(sqrt(y^2)+1)/z
we asume that x,y and z is > 0
what is y??
It clearly shows the (y^2) enclosed by brackets and the sqrt before the bracket...thus the sqrt is for what is in the bracket only (Y^2).
The + 1 is outside the bracket for the sqrt but is within the bracket that enclosed the whole RHS of the equation numerator. So the whole RHS outer bracket is divided by Z
This is how Guest2 interpreted the question and answered it correctly giving Y = ZX -1
TutorSOS mis-interpreted or took down the question wrongly and therefore got the wrong answer
The second question presented by guest1 was as below....
5*x+z=(sqrt(y^2)+5)/z
and also need to get y
Clearly the brackets are in the same place so this is the same type of question involving sqrt(Y^2) only and Guest2 answered it correctly .... Y = Z(5X+Z)-5
And again TutorSOS took it down wrongly and got the wrong answer.