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MHT CET202014 Oct 2020Morning ShiftMathematicsStraight LinesActual

The length of the perpendicular from the point P(a, b) to the line x a + y b =1 is

Options

  1. Aa²+b² a b units
  2. B| a b a²+b² | units
  3. C| b² a²+b² | units
  4. D| a² a²+b² | units

Correct answer

B. | a b a²+b² | units

Step-by-step solution

We have line b x+a y-a b=0 Length of e r from P(a, b) on the given line is | b a+a b-a b b²+a² |= | a b a²+b² |

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