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AP EAMCET202018 Sep 2020Morning ShiftMathematicsVector AlgebraActual

If ( a =2 i + j -3 k ) and ( b =3 i - j +2 k ), then find the angle between the vectors (2 a + b ) and ( a +2 b ).

Options

  1. A( ⁻¹ ( 36 42 35 ) )
  2. B( ⁻¹ ( 72 24 32 ) )
  3. C( ⁻¹ ( 52 74 65 ) )
  4. D( ⁻¹ ( 24 18 32 ) )

Correct answer

A. ( ⁻¹ ( 36 42 35 ) )

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