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A pair of perpendicular straight lines p...

A pair of perpendicular straight lines passes through the origin and also through the point of intersection of the curve `x^(2)+y^(2)=4` with x+y=a. The set containing the value of 'a' is

A

x+y=a

B

{-3,3}

C

{-4,4}

D

{-5,5}

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The correct Answer is:
A
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AAKASH SERIES-PAIR OF STRAIGHT LINES-LECTURE SHEET (EXERCISE-I Homogeneous pair of lines) (Straight Objective Type Questions)
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  14. Show that the lines joining the origin to the two points of intersecti...

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  17. If the line y=sqrt3x " cuts the curve " x^3+y^3+3xy+5x^2+3y^2+4x+5y-1=...

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  18. The line x+y=1 meets the lines represented by equation y^2-6cy^2+11x^2...

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  19. If x/a+y/b=1 " intersects " 5x^2+5y^2+5bx+5ay-9ab=0 at P and Q, angleP...

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