The area of the rhombus enclosed by the lines 1 x - my - n -0 be 2 square units- thenA- 1-2- m - n are in G-PB- l-n-m are in G-PC- lm-nD- ln - m

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Applications of Dot Product

the area of t...

Question

the area of the rhombus enclosed by the lines $l x \pm m y \pm n = 0$ be 2square units, then

1,2,m,n are in G.P

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l,n,m are in G.P

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lm = n

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ln = m

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l x \pm m y \pm n = 0

2

If the lines $l x + m y + n = 0, m x + n y + l = 0$ and $n x + l y + m = 0$ are concurrent then ( $l, m, n \neq 0$ )

(l, m, n)

l + m + n = 0, l m = 0,

n < 0

The area (in square units) of the quadrilateral formed by the two pairs of lines

$l^{2} x^{2} - m^{2} y^{2} - n (l x + m y) = 0$

and $l^{2} x^{2} - m^{2} y^{2} + n (l x - m y) = 0$ is

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