=0quad " (2) "2m^(2)=5m-5

If the direction cosines of two lines are given by l+m+n=0 " and " l^(2)-5m^(2)+n^(2)=0 then the angle between them is

Solve the following quadratic equations : m^(2)+5m+5=0

Solve the following quadratic equations : m^(2)+5m+5=0

The lines x+y-1=0,(m-1)x+(m^2-7)y-5=0 and (m-2)x+(2m-5)y=0 are

Determine whether the value given against each of the quadratic equation are the roots of the equation. (ii) 2m^2-5m=0, m=2,5/2 .

Determine wheter the value given against each of the quadratic equation are the roots of the equation. (ii) 2m^2-5m=0, m=2,5/2 .