a irax by c and lix my n has unique solutions then find the relation between the coefficients

If ax+by=c and px+qy=r has unique solution, then

The system has unique solution if

Relations Between Roots and Coefficients

Relations Between Roots and Coefficients

Write the relation between expansion coefficient of liquid.

Problems on Relations Between Roots and Coefficients

Problems on Relations Between Roots and Coefficients

If am= bl, then find whether the pair of linear equations ax + by= c and lx + my = n has no solution, unique solution or infinitely many solutions

If the system of equations 6x + 2y = 3 and kx + y = 2 has a unique solution, find the value of k .

Find the coefficients of x^7 in (a x^2+1/(b x))^(11)and x^(-7)i n(a x-1/(b x^2))^(11) and find the relation between a and b so that coefficients are equal.