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The equation of the line common to the p...

The equation of the line common to the pair of lines `(p^(2)-q^(2)) x^(2)+(q^(2)-r^(2)) x y+(r^(2)-p^(2)) y^(2)=0` and `(l-m) x^(2)+(m-n) x y+(n-l) y^(2)=0` is

A

`x+y=0`

B

`x-y=0`

C

`x+y=p q r`

D

`x-y=p q r`

Text Solution

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The correct Answer is:
B
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HIMALAYA PUBLICATION-Pair Of Lines-QUESTION BANK
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  2. The equation of the pair of lines through (1,-1) and perpendicular to ...

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  3. The equation of the line common to the pair of lines (p^(2)-q^(2)) x^(...

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  7. The equation of the pair of lines through the points (a, b) parallel t...

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  8. If the equation lambda x^(2)-5 x y+6 y^(2)+x-3 y=0 represents a pair o...

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  9. The product of the perpendiculars from (-1,2) to the pair of-lines 2 x...

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  14. If the pair of lines x y-x-y+1=0 and the line a x+2 y-3=0 are concurre...

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  16. If the coordinate axes are the bisectors of the angles between the pai...

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  17. If the pair of lines given by a x^(2)+2 h x y+b y^(2)=0 (h^(2)>a b) fo...

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

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