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If |veca|=|vecb|=|veca+vecb|=1 then fin...

If `|veca|=|vecb|=|veca+vecb|=1` then find the value of `|veca-vecb|`

Text Solution

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we have
`|veca+vecb|^(2)+|veca-vecb|^(2)=2(|veca|^(2)+|vecb|^(2))`
`1+|veca-vecb|^(2)=4or|veca-vecb|sqrt3`
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