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What is the unit vactor along hati + hat...

What is the unit vactor along `hati + hatj ?`

A

`( hati + hatj )/( sqrt2)`

B

`sqrt 2 ( hati + hatj)`

C

`hati + hatj `

D

`hatk`

Text Solution

Verified by Experts

The correct Answer is:
A
`hat a = (vec a )/( | vec a | ) implies `unit vector `= ( hati + hatj )/( sqrt2).`
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