a,b and c are vectors.
 
  Options for the question is
  • equal
  • perpendicular
  • 0 vector, 0 vector
  • parallel 

Asked by Priyanka Margaret | 25th Apr, 2014, 01:39: PM

Expert Answer:

a cross times open parentheses b cross times c close parentheses equals b cross times open parentheses a cross times c close parentheses  a cross times open parentheses b cross times c close parentheses equals b open parentheses a. c close parentheses minus c open parentheses a. b close parentheses space a n d space b cross times open parentheses a cross times c close parentheses equals a open parentheses b. c close parentheses minus c open parentheses b. a close parentheses  rightwards double arrow b open parentheses a. c close parentheses minus c open parentheses a. b close parentheses equals a open parentheses b. c close parentheses minus c open parentheses b. a close parentheses  rightwards double arrow b open parentheses a. c close parentheses equals a open parentheses b. c close parentheses space space space space space space space space open square brackets c open parentheses a. b close parentheses equals c open parentheses b. a close parentheses close square brackets  rightwards double arrow space a space parallel to b
 
Hence option 'B' is correct.

Answered by  | 25th Apr, 2014, 03:08: PM

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