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MHT CET202015 Oct 2020Evening ShiftMathematicsStraight LinesActual

The acute angle between the lines given by y- 3 x+1=0 and 3 y-x+7=0 is

Options

  1. A75^
  2. B60^
  3. C45^
  4. D30^

Correct answer

D. 30^

Step-by-step solution

Slope of given lines are m₁= 3 , and m₂= 1 3 array l = | 3 - 1 3 1+ 3 1 3 |= | 2 3 | = 1 3 =30^ array

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