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Question
Suppose `bar"a" = bar"0"`:
If `bar"a" xx bar"b" = bar"a" xx bar"c"`, then is `bar"b" = bar"c"` ?
Sum
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Solution
Take `bar"b" = hat"i", bar"c" = hat"j"`
Then `bar"a" xx bar"b" = bar"a" xx bar"c" = 0`, but `bar"b" ne bar"c"`
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Chapter 5: Vectors - Miscellaneous exercise 5 [Page 192]
