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If the area of the rhombus enclosed by the lines lx + my + n = 0, lx + my- n = 0, lx - my + n = 0 and lx - my - n = 0

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If the area of the rhombus enclosed by the lines lx + my + n = 0, lx + my-   n = 0, lx - my + n = 0 and lx -  my - n = 0 is 2 sq. unit, then

(A)   m2 = ln

(B)   n2 = lm

(C)   m = ln

(D)   n = lm

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1 Answer

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Best answer

Correct option  (B)  n2 = lm

Explanation :

The area of the rhombus is

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