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the point with position vectors 60i +3j, 40i- 8j and i-52 j are collinear if
  1. a =-40
  2. a=40
  3. a=20
  4. none of these

mansi dabriwal , 10 Years ago
Grade 12th pass
anser 5 Answers
ng29

Last Activity: 10 Years ago

hey mansi check the question again as there is no a in all the given vectors 
and post the que again to get it solved
 

mansi dabriwal

Last Activity: 10 Years ago

ups sry....it is 60i+3j, 40i-8j and  ai-52j....rest same ..

VAISHNAVI BATHINA

Last Activity: 10 Years ago

DATA IS NOT CORRECT

mansi dabriwal

Last Activity: 10 Years ago

the  point with position vectors 60i+3j, 40i-8j and  ai-52j  are collinear if 
  1. a =-40
  2. a=40
  3. a=20
  4. none of these
  5.  

ng29

Last Activity: 10 Years ago

answer is 40
for collinear we can write  AB=X (BC)
WHERE a,b,c ARE THREE GIVEN VECTORES AND ON COMPARING THE COEFFICIENTS OF i and j we get the value of a to be 40
approve if useful
 

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