Question

Pls answer this question

Answer 1

First of all,

|c| = 3|a|

3|a| = 3√(1²+1²+1²) = 3√3

so, |c| =3√3

So, magnitude of c is 3√3

Now,

among from all the options only two options that is (A) and (B) will give a Resultant of magnitude of 3√3.

So, this simply depletes two option that is (C) and (D)

Now,

Among (A) and (B) options,

{We know,parallel vectors are those vectors which are parallel to each other and can have have same direction just different magnitude.}

Considering option (A),

c = 3i+3j+3k = 3(i+j+k)

We can clearly see that it has a different direction than that of a

Now

Considering option (B)

c = 2√3i+2√3j-√3k =√3(2i+2j-k)

We can clearly now see that it has same direction as a just √3 times more/less.

So,

The answer is (B) c= 2√3i+2√3j-√3k

Cheers!

Answer 2

Answer:

Finally I got the chance to text you btw Vedant I am Nandini ❤️