Preliminary Concept - II
1. Concept of Brackets { }--- value is the solution, e.g. {3,4} => x =3 and 4 ( )----- open interval , end points excluded e.g. (3 4) => 3 < x < 4 [ ] ---- close interval, end points included e.g. [3 4] => 2. Number System: 3. Every number is a complex number 0 is both real as well as imaginary ( 0 + i0 ) 4. Rational No. - p/q form => and p and q both are integers and p/q = recurring decimal --- rational non-recurring decimal --- irrational 5. and e both are irrational 6. Standard Theorem :- Between two consecutive rational number there is only one irrational number and vice versa. 7. Real Line Method : i) Algebraic equ...