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MHT CET20227 Aug 2022Morning ShiftMathematicsThree Dimensional GeometryActual

The angle between two lines x+1 2 = y+3 2 = z-4 -1 and x-4 1 = y+4 2 = z+1 2 is

Options

  1. A⁻¹ ( 4 9 )
  2. B⁻¹ ( 2 9 )
  3. C⁻¹ ( 1 9 )
  4. D⁻¹ ( 5 9 )

Correct answer

A. ⁻¹ ( 4 9 )

Step-by-step solution

The required angle aligned & = ⁻¹ ( 2 1+2 2+(-1) 2 2^2+2^2+1^2 1^2+2^2+2^2 ) & = ⁻¹ ( 4 3 3 ) & = ⁻¹ ( 4 9 ) aligned

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