For all $\alpha, \beta \in R$ and $\alpha \beta > 0$,the line $\alpha x + \beta y + \sqrt{\alpha \beta} = 0$ is such that it

  • A
    possesses a slope independent of $\alpha$ and $\beta$
  • B
    passes through a fixed point
  • C
    forms a triangle of constant area with coordinate axes
  • D
    possesses intercepts on the axes that differ by a quantity independent of $\alpha, \beta$

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$A$ line $L$ passes through the points $(1, 1)$ and $(2, 0)$ and another line $L'$ passes through $\left( \frac{1}{2}, 0 \right)$ and is perpendicular to $L$. Then the area of the triangle formed by the lines $L, L'$ and the $y$-axis is:

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