Maharashtra State BoardHSC Arts 12th Board Exam
Advertisement Remove all ads

Select the correct option from the given alternatives: Let aijbjkckia¯=i^-j^,b¯=j^-k^,c¯=k^-i^. If dd¯ is a unit vector such that adbcda¯.d¯=0=[b¯c¯d¯], then dd¯ equals - Mathematics and Statistics

Advertisement Remove all ads
Advertisement Remove all ads
MCQ

Select the correct option from the given alternatives:

Let `bar"a" = hat"i" - hat"j", bar"b" = hat"j" - hat"k", bar"c" = hat"k" - hat"i".` If `bar"d"` is a unit vector such that `bar"a". bar"d" = 0 = [bar"b" bar"c" bar"d"]`, then `bar"d"` equals

Options

  • `+- (hat"i" + hat"j" - 2hat"k")/sqrt6`

  • `+- (hat"i" + hat"j" + hat"k")/sqrt3`

  • `+-(hat"i" + hat"j" - hat"k")/sqrt3`

  • `+-  hat"k"`

Advertisement Remove all ads

Solution

`+- (hat"i" + hat"j" - 2hat"k")/sqrt6`

Concept: Vectors and Their Types
  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×