An ordered pair consisting of two elements in a given fixed order.
Eg. `(a, b).`

An order pair is not a set consisting of two elements. The position of a point in two dimentional plane is
Eg. of an ordered pair `(1, 2), (2, 2)`...........

Equality of ordered pairs :
Two ordered pairs `(a_1 , b_1)` and `(a_2, b_2)` are said to be equal if `a_1 = a_2 quad&quad b_1 = b_2`

Eg. find the values of `a` and `b` if `(3a - 2, b + 3) = (2a - 1, 3)`

`b + 3 = 3quadquad,quad 3a - 2= 2a - 1`

` => a = 1quad quad,quad b = 0`

`text(Note : )`

1. Ordered pairs `(a, b)` and `(b, a)` are different.
2. Ordered pairs `(a, b)` and `(c, d)` are equal if `a = c` and `b =d.`