A particle moves from position `A` to position `B` in a path as shown in If the poit vectors `vec r_(1)` and `vec r_(2)` making an angle `theta` between them are give, find the magnitude of displacement.
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In a two-dimensional motion of a particle, the particle moves from point A of position vector vecr _(1), to point B of vectors are , respectively, r _(1) =3 and r _(2) =4 and the angles they make with the x axis are theta _(1) = 75^(@)and theta_(2) = 15 ^(@), respectively, then find the magnitude of the displacement vector.

Find the magnitude of the vectors vec a and vec b having same magnitude such that the angle between them is 30^(@) and vec a. vec b = 3

Find the magnitude of two vectors vec(a) and vec(b) having the same magnitude and such that the angle between them is 60^@ and their scalar product is 1//2 .

Find the magnitude of each of the two vectors vec a and vec b having the same magnitude such that the angle between them is 60^(@) and their scalar product is 9/2 .

Find the magnitude of two vectors vec a and vec b having the same magnitude and such that the angle between them is 60^(@) and their scalar product is.

If vec(e_(1)) and vec(e_(2)) are two unit vectors and theta is the angle between them, then sin (theta/2) is:

If vec(e_(1)) and vec(e_(2)) are two unit vectors and theta is the angle between them, then sin (theta/2) is:

If vec(e_(1)) and vec(e_(2)) are two unit vectors and theta is the angle between them, then sin (theta/2) is: