If vec A . vecB =vecA*vecB, find |vecA -...

If `vec A . vecB` =`vecA*vecB`, find `|vecA - vecB|`

A

`sqrt(A^2+B^2+sqrt(2)AB)`

B

`sqrt(A^2+B^2-sqrt(2AB))`

C

`sqrt(A^2+B^2+sqrt(2AB))`

D

`sqrt(A^2+B^2-sqrt(2)AB)`

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS SECTION B

If vec A . vecB =vecA*vecB, find |vecA - vecB|
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