1.

Let a = hati + hatj, b = hatj+ hatk and c = hati+ hatk. If d is unit vector such that a.d = 0 and b . (c xxd)=0 and d=

Answer»

`PM (1)/(sqrt2) (HATI+ hatj)`
`pm ((1)/(sqrt2) hatj +(1)/(sqrt2) hatk)`
`(1)/(sqrt2) hati + (1)/( sqrt2) hatj + (1)/(sqrt3) hatk`
`pm ((1)/(sqrt2)hatj + (1)/(sqrt2) hatk)`

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