Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If the vector `veca,vecb=hati+2hatj+3hatk` and `vecc=2hati-hatj` and form a right handed system then `hata`is equal to - Sarthaks eConnect

If the vector `veca,vecb=hati+2hatj+3hatk` and `vecc=2hati-hatj` and form a right handed system then `hata` is equal to:

`(hati+hatj+hatk)/sqrt3`

`1/sqrt70(3hati+6hatj-5hatk)`

`(hati+hatj-hatk)/sqrt3`

`(-hati+hatj-hatk)/sqrt3`