Advertisement Remove all ads

Suppose a0a¯=0¯: If abacandabaca¯.b¯=a¯.c¯anda¯×b¯=a¯×c¯, then is bcb¯=c¯? - Mathematics and Statistics

Advertisement Remove all ads
Advertisement Remove all ads
Sum

Suppose `bar"a" = bar"0"`:

If `bar"a".bar"b" = bar"a".bar"c" and bar"a" xx bar"b" = bar"a" xx bar"c"`,  then is `bar"b" = bar"c"`?

Advertisement Remove all ads

Solution

Take `bar"a" = bar"0", bar"b" = hat"i", bar"c" = hat"j"`

Then `bar"a".bar"b" = bar"a".bar"c" = 0 and bar"a" xx bar"b" = bar"a" xx bar"c" = bar"0"` , but `bar"b" ne bar"c"`

Notes

[Note: Answer in the textbook is incorrect.]

Concept: Vector Joining Two Points
  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×