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MHT CET202210 Aug 2022Morning ShiftMathematicsVector AlgebraActual

| a |= 3 ,| b |=5, b c =10 and angle between b and c is ( 3 ) . If a is perpendicular to b c , then value of | a ( b c )| is

Options

  1. A15
  2. B10 3
  3. C30
  4. D10

Correct answer

C. 30

Step-by-step solution

| a ( b c )|=| a | | b c | 2 from (i) and (ii) | a ( b c )|= 15 2 4=30

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