Question

all formula of maths chapter 3 pair of linear equation in two variable class 10​

Answer 1

Answer:

$\bold{\boxed{Answer}}$

for unique solution.

a1/a2 ≠ b1/b2

for infinite many solutions

a1/a2 = b1/b2 = c1/c2

for no solution

a1/a2 = b1/b2 ≠ c1/c2

there are three method to solve the equations.

$\bold\mathcal{\boxed{1)\:elimination\: method}}$

$\bold\mathcal{\boxed{2)\:substitution\: method}}$

$\bold\mathcal{\boxed{3)\:cross\: multiplication\:method}}$

Answer 2

Answer:

for unique solution.

a1/a2 ≠ b1/b2

for infinite many solutions

a1/a2 = b1/b2 = c1/c2

for no solution

a1/a2 = b1/b2 ≠ c1/c2