The equation 3x2 + 2hxy + y2 = 0 represents a pair of st. lines passing through the origin. The two lines are

Question

The equation 3x2 + 2hxy + y2 = 0 represents a pair of st. lines passing through the origin. The two lines are (A) real and distinct if h2 > 3 (B) real and distinct if h2 > 9 (C) real and coincident if h2 = 3 (D) real and coincident if h 2 > 3.

Tardigrade Admin · Accepted Answer

Correct answer is (d) real and coincident if h 2 > 3.

Q. The equation $3 x^{2} + 2 h x y + y^{2}$ = 0 represents a pair of st. lines passing through the origin. The two lines are

real and distinct if $h^{2} > 3$

real and distinct if $h^{2} > 9$

real and coincident if $h^{2} = 3$

real and coincident if $h^{2} > 3$ .

Correct answer is (d) real and coincident if $h^{2} > 3$ .

Q. The equation 3x2+2hxy+y2 = 0 represents a pair of st. lines passing through the origin. The two lines are

real and distinct if h2>3

real and distinct if h2>9

real and coincident if h2=3

real and coincident if h2>3.