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If |veca|+|vecb|=|vecc|and veca+vecb=vec...

If `|veca|+|vecb|=|vecc|and veca+vecb=vecc` then find the angle between `veca and vecb`.

Text Solution

Verified by Experts

`veca=vecb=vecc`
or `|veca|^(2)+|vecb|^(2)+2veca.vecb= |vecc|^(2)`
`veca.vecb=|veca||vecb|`
`costheta=1or cos=0^(@)`
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