A vectors which makes equal angles with ...

A vectors which makes equal angles with the vectors ` 1/3(hati - 2hatj + 2 hatk ) , 1/5(-4hati - 3hatk) , hatj ` is:

`5hat(i)+5hat(j)+hat(k)`

`5hat(i)+hat(j)-5hat(k)`

`5hat(i)+hat(j)+5hat(k)`

`pm(5hat(i)-hat(j)-5hat(k))`

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