हिंदी

The separate equations of the lines represented by 3x2-23xy-3y2 = 0 are ______

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प्रश्न

The separate equations of the lines represented by `3x^2 - 2sqrt(3)xy - 3y^2` = 0 are ______ 

विकल्प

  • `x + sqrt(3)y` = 0 and `sqrt(3)x + y` = 0

  • `x - sqrt(3)y` = 0 and `sqrt(3)x - y` = 0

  • `x - sqrt(3)y` = 0 and `sqrt(3)x + y` = 0

  • `x + sqrt(3)y` = 0 and `sqrt(3)x - y` = 0

MCQ
रिक्त स्थान भरें
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उत्तर

`x - sqrt(3)y` = 0 and `sqrt(3)x + y` = 0

Explanation:

`3x^2 - 2sqrt(3)xy - 3y^2`

Divided by - x2

`(3y^2)/(x^2) + 2sqrt3y/x - 3 = 0`

`3x^2 + 2sqrt3 m - 3 = 0`

quadrant equation

`m = (-2sqrt2+- sqrt12 + 36)/6`

`m = (-2sqrt3 +-sqrt48)/6`

`m = (-2sqrt3 +-4sqrt3)/6`

`m = (-1+-2)/sqrt3`   ...(divided by 2√3)

equation of line = y = mx

`y = 1/sqrt3x`

(1) ` sqrt3y - x = 0`

`y = (-3)/sqrt3x`

(2) `sqrt3x + y = 0`

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अध्याय 1.4: Pair of Lines - MCQ
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