The angle theta between two non-zero vec...

The angle `theta` between two non-zero vectors `bar(a) and bar(b)` is given by `cos theta` =….

`(bar(a).bar(b))/(|bar(a)||bar(b)|)`

`bar(a). bar(b)`

`|bar(a)||bar(b)|`

`(|bar(a)||bar(b)|)/(bar(a).bar(b))`

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