Consider the equation of a pair of straight lines as
`lambdaxy-8x+9y-12=0`

Consider the equation of a pair of straight lines as lambdax^(2)-10xy+12y^(2)+5x-16y-3=0 . The angles between the lines is theta . Then the value of tan theta is

Consider the equation of a pair of straight lines as lambdax^(2)-10xy+12y^(2)+5x-16y-3=0 . The angles between the lines is theta . Then the value of tan theta is

Consider the equation of a pair of straight lines as x^2-3xy+lambday^2+3x-5y+2=0 The value of lambda is

Consider the equation of a pair of straight lines as x^2-3xy+lambday^2+3x=5y+2=0 The value of lambda is

Consider the equation of a pair of straight lines as x^2-3xy+lambday^2+3x=5y+2=0 The value of lambda is

Consider the equation of a pair of straight lines as x^2-3xy+lambday^2+3x-5y+2=0 The value of lambda is

Consider the equation of a pair of straight lines as 2x^(2)-10xy+12y^(2)+5x-16y-3=0 . The angles between the lines is theta . Then the value of tan theta is

Consider the equation of a pair of straight lines as 2x^(2)-10xy+12y^(2)+5x-16y-3=0 . The angles between the lines is theta . Then the value of tan theta is

The value k for which 4x^(2)+8xy+ky^(2)=9 is the equation of a pair of straight lines is