`vecA = 2hati +3hatj + hatk` तथा `vecB = 4hati -2hatj - hatk` सदिश का योग ज्ञात कीजिये।

Options

A. `-6hati + hatj`
B. `6hati + hatj + 2hatk`
C. `6hati + hatj`
D. `6hati - hatj`

Answer

C

Explanation

`vecA + vecB = 2hati +3hatj + hatk + 4hati - 2hatj - hatk = 6hati + hatj`