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The direction ratios of two lines are given by $a + b + c = 0, a^{2} + b^{2} - c^{2} = 0$ . Then $a (a + c) =$

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Correct option is D

The given relations are a+b+c=0............(1)a2+b2−c2=0...........(2)From equation (2), a2−c2=−b2a−ca+c=−a+c2a−c=−a−c2a=0Hence,aa+c=0

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The direction ratios of two lines are given by a+b+c=0 , a2+b2−c2=0. Then aa+c=

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

The direction ratios of two lines are given by $a + b + c = 0, a^{2} + b^{2} - c^{2} = 0$ . Then $a (a + c) =$