fundamental

☼ Cramer’s  Rules  ( for homogeneous system ):  

If   l₁  :  a₁x   +  b a₁y   =  0

and   l₂ :   a a₂x  +  b a₂y   =  0

( Where, a_i

☼ The  homogeneous equation  in  two  variables :   The  equation  of  the  form   ax  +  by   =  0 ( Where,  a, b are real numbers and a² + b²

☼ Cramer’s  Rules  :  

  If       l₁  :  a₁ x   +  b₁ y  +  c₁  =  0

and      l<...

☼ Linear Equation in two variables  :   The  equation  of  the  form   ax  +  by  +  c  =  0

( Where,  a, b, c are real numbers and a² + b²

☼ Simple  Equations ( Linear Equation in one variable ) :   Simple equations are equations which generally have only  one  variable.

 e.g. 2x – 3  =  7

 Note : Linear Equation means the equatio…

☼ Equation  :   The mathematical form of  a  complete sentence is called an equation.

 e.g. After giving Rs. 5000 from my saving to Dinesh, I  have the balance of  Rs. 10000.