Let ` -> a`and ` -> b`be two unit vectors and is the angle between them. Then ` -> a+ -> b`is a unit vector if(A) `theta=pi/4` (B) `theta=pi/3` (C) `theta=pi/2` (D) `theta=(2pi)/3`

Let vec a . vec b be two unit vectors and theta is the angle between them. Then vec a + vec b is a unit vector if

If hata and hatb are two unit vectors and theta is the angle between them then vector 2hatb+hata is a unit vector if (A) theta= pi/3 (B) theta=pi/6 (C) theta=pi/2 (D) theta=pi

If hata and hatb are two unit vectors and theta is the angle between them then vector 2hatb+hata is a unit vector if (A) theta= pi/3 (B) theta=pi/6 (C) theta=pi/2 (D) theta=pi

Choose the correct answer. Let veca"and"vecb be two unit vectors and theta be the angle between them.Then veca+vecb is a unit vector, if: a) theta=pi/4 b) theta=pi/3 c) theta=pi/2 d) theta=(2pi)/3

If a and b are unit vectors and theta is the angle between them then a-b will be a unit vector if

Let vec(a) and vec(b) be two unit vectors and theta is the angle between them. Then vec(a)+vec(b) is a unit vector if :

Let vec(a) and vec(b) be two unit vectors and theta is the angle between them. Then vec(a)+vec(b) is a unit vector if ……….