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If vec c = 2 vec a + 3 vec b and 3 vec c...

If `vec c = 2 vec a + 3 vec b` and `3 vec c = 3 vec a - 4 vec b` show that (i)`vec c and vec a ` are like parallel and `|vec c| gt |vec a|`(ii)`vec c and vec b ` are unlike parallel and `|vec c| gt5 |vec b|`

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