tinaravat840
New member
- Joined
- Dec 30, 2014
- Messages
- 1
Q; In each question below one or more equations is/are given. On the basis of these, you have to find out the relationship between ‘x’ and ‘y’?
I should compare using the constant of the equation or by using discriminant and finding root of equation What approach should be followed ?
- x^2-4x-5=0
- y^2-18x+81=0
- if y<x
- if y>x
- y=x
- if relation between x and y can’t be determined
- none of above.
- x + y = 18
- x^2 + y^2 +xy=279
- if y<x
- if y>x
- y=x
- if relation between x and y can’t be determined
- none of above.
I should compare using the constant of the equation or by using discriminant and finding root of equation What approach should be followed ?