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In a triangle ABC, if |vecB C| = 3, |C v...

In a triangle ABC, if `|vecB C| = 3, |C vecA| = 5 and |vecB A| = 7,` then the projection of the vector `B vec A` on `vecB C` is equal to :

A

`(19)/(2)`

B

`(13)/(2)`

C

`(11)/(2)`

D

`(15)/(2)`

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