` 2x^2 +2y^2 +4 lambda x+lambda =0` represents a circle for

If the equation 3x^2 + 3y^2 + 6lambdax + 2lambda = 0 represents a circle, then the value of lambda . lies in

If 2(x^(2)+y^(2))+4 lambda x + lambda^(2)=0 represents a circle of meaningful radius, then the range of real values of lambda , is

IF x^(2) + y^(2) - 2y - 15 + lambda (2x + y - 9) = 0 represents family of circles for. Different values of lambda , then the equation of the circle(s) along these circles having minimum radius is/are

The value of lambda for which the equation x^2-y^2 - x - lambda y - 2 = 0 represent a pair of straight line, are

The value of lambda with |lambda| lt 16 such that 2x^(2) - 10xy +12y^(2) +5x +lambda y - 3 = 0 represents a pair of straight lines is

Find the value of lambda if 2x^2+7x y+3y^2+8x+14 y+lambda=0 represents a pair of straight lines

Find the value of lambda if 2x^2+7x y+3y^2+8x+14 y+lambda=0 represents a pair of straight lines.

Find the value of lambda if 2x^2+7x y+3y^2+8x+14 y+lambda=0 represents a pair of straight lines

If the equation x^(2)+y^(2)+6x-2y+(lambda^(2)+3lambda+12)=0 represent a circle. Then

Number of integral values of lambda for which x^2 + y^2 + 7x + (1-lambda)y + 5 = 0 represents the equation of a circle whose radius cannot exceed 5 is