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If the lines joining the origin to the p...

If the lines joining the origin to the points of intersection of the line y =mx +2 and the curve `x^(2)+y^(2)=1` are right angles then

A

0

B

`(1)/(2)`

C

1

D

-1

Text Solution

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The correct Answer is:
B
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HIMALAYA PUBLICATION-Pair Of Lines-QUESTION BANK
  1. The equation of second degree x^(2)+2 sqrt(2) x y+2 y^(2)+4 x+4 sqrt(2...

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  2. If the angle between two st lines represented by 2x^(2)+5xy+3y^(2)+7y...

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  3. If the lines joining the origin to the points of intersection of the ...

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  4. A diagonal of the rectangle formed by the lines x^(2)-7x+6=0 and y^(...

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  5. The equation of the pair of lines passing through (0,1) and parallel t...

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  6. If 4 x y+2 x+2 f y+3=0 represents a pair of lines, then f=

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  7. The equation of the pair of lines passing through the origin and each ...

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  8. The equation of the pair of lines passing through the origin and perpe...

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  9. If a x^(2)+2 h x y+b y^(2)+2 g x+2 f y+c=0 represents a parallel lines...

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  10. The product of the perpendiculars from (1, 1) to the pair of lines x^(...

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  11. If one of the lines ax^(2)+2hxy+by^(2)=0 bisects the angle between ...

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  12. Equation of pair of lines passing through (2,1) and perpendicular to t...

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  13. The values of p and q for which the equation 4 x^(2)+2 p x y+25 y^(2)+...

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  14. Area of the parallelogram formed by 2 x^(2)+5 x y+3 y^(2)=0 and 2 x^(2...

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  15. The four lines given by y^(2)-4 y+3=0 and x^(2)+4 x y+4 y^(2)-5 y-10 y...

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  16. The four lines given by 3 x^(2)+10 x y+3 y^(2)=0 and 3 x^(2)+10 x y+3 ...

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  17. The four lines given by the equations 12 x^(2)+7 x y-12 y^(2)=0 and 12...

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  18. The point of intersection of perpendicular lines a x^(2)+3 x y-2 y^(2)...

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  19. The coordinates of the orthocentre of the triangle formed by the lines...

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  20. The area of the triangle formed by the lines x^(2 )+4 x y+y^(2)=0, x+y...

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