Statement-1 : If the general equation x^{2}+y^{2}+2 x y+2 g x+2 f y+4=0 represents a pair of real lines then |g| \geq 2. Statement- 2 : The equation a x^{2}+2 h x y+b y^{2}+2 g x+2 f y+c=0 represents pair of real lines if a b c+2 f g h-a f^{2}-b g^{2}-c h^{2}=0

Correct Answer is : Statement -1 is true, Statement- 2 is false

Statement -1 is false, Statement- 2 is true

Statement -1 is true, Statement- 2 is true; Statement -2 is a correct explanation for Statement-1

Statement -1 is true, Statement- 2 is true; Statement -2 is not a correct explanation for Statement-1

Statement -1 is true, Statement- 2 is false

BITSAT 2020 Paper

Section: Mathematics

Question : 114 of 150

Marks: +1, -0

Statement-1 : If the general equation x2+y2+2xy+2gx+2fy+4=0 represents a pair of real lines then |g|≥2.
Statement- 2 : The equation ax2+2hxy+by2+2gx+2fy+c=0 represents pair of real lines if abc+2fgh−af2−bg2−ch2=0

Statement -1 is false, Statement- 2 is true
Statement -1 is true, Statement- 2 is true; Statement -2 is a correct explanation for Statement-1
Statement -1 is true, Statement- 2 is true; Statement -2 is not a correct explanation for Statement-1
Statement -1 is true, Statement- 2 is false

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