The value of h for which the equation 3x...

The value of h for which the equation `3x^2+2hxy-3y^2-40x+30y-75=0` represents a pair of straight lines , are

A

4,4

B

4,6

C

4,-4

D

0,4

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The correct Answer is:

A

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DISHA PUBLICATION-STRAIGHT LINES AND PAIR OF STRAIGHT LINES-EXERCISE 1: CONCEPT BUILDER

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