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If the sum of the slopes of the lines given by x^2 - 2 cxy - 7y^2 = 0 is four times

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If the sum of the slopes of the lines given by x2 - 2 cxy - 7y2 = 0 is four times their product, then c has the value

(a) 1

(b) -1

(c) 2

(d) -2

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1 Answer

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Best answer

Correct Option (c) 2

Explanation:

The given pair of lines is x2 - 2cxy - 7y2 = 0

On comparing the standard equation

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