Question

`vec(a)=3hat(i)+5hat(j),vec(b)=2hat(i)+7hat(j)` and `vec(c)=hat(i)+9hat(j)` are three vectors which of the following combinations is in the same direction as `vec(a)+vec(b)-vec(c)` :
A. `2vec(a)+vec(b)`
B. `2vec(a)-vec(b)`
C. `vec(a)-2vec(b)`
D. None of these

Answer 1

Correct Answer - B
`vec(a)+vec(b)-vec(c)=4hat(i)+3hat(j)`
` 2vec(a)-vec(b)=4hat(i)+3hat(j)`