Two of the lines represented by `ax^3+3bx^2y+3cxy^2+dy^3=0` will be perpendicular if 1) `a^2 + ac + db +d^2=0` 2) `a^2+3(ac+bd)+d^2=0` 3) `a^2-3(ac + bd)+d^2=0` 4) `a^2-ac-bd+d^2=0`

If two of the three lines represented by ax^3+ bx^2y +cxy^2+dy^3=0 may be at right angles then

If two of the three lines represented by ax^3+ bx^2y +cxy^2+dy^3=0 may be at right angles then

If two of the three lines represented by ax^(3)+bx^(2)y+cxy^(2)+dy^(3)=0 may be at right angles then

Find the condition that two of the three lines represented by ax^3+bx^2y+cxy^2+dy^3=0 may be at right angle.

Show that the condition that two of the three lines represented by ax^(3)+bx^(2)y+cxy^(2)+dy^(3)=0 may be at right angles is a^(2)+ac+bd+d^(2)=0

Statement I. Two of the straight lines represented by dx^3+cx^2y+bxy^2+ay^3=0 will be at right angles if d^2+bd+bc +a^2 =0 Statement II. Product of the slopes of two perpendicular line is -1

Statement I. Two of the straight lines represented by dx^3+cx^2y+bxy^2+ay^3=0 will be at right angles if d^2+bd+bc +a^2 =0 Statement II. Product of the slopes of two perpendicular line is -1

Statement I. Two of the straight lines represented by dx^3+cx^2y+bxy^2+ay^3=0 will be at right angles if d^2+bd+bc +a^2 =0 Statement II. Product of the slopes of two perpendicular line is -1