" 12.Prove that "|vec a timesvec b|=(vec a*vec b)tan theta," where "theta" is the angle between "vec a" and "vec b

Define vec a xxvec b and prove that |vec axvec b|=(vec a*vec b tan theta, where theta is the angle between vec a and vec b

Prove that |vec(a) xx vec(b)|=(vec(a)*vec(b)) tan theta," where " theta is the angle between vec(a) and vec(b) .

Define vec axx vec b and prove that | vec axx vec b|=( vec a. vec btantheta, where theta is the angle between vec a and vec b ) .

Prove that abs(vec(a) times vec(b))=(vec(a)*vec(b))tantheta , where theta is the angle between vec(a) and vec(b) .

prove that | vec axx vec b|=( vec adot vec b)t a ntheta,\ w h e r e\ theta is the angle between vec a\ a n d\ vec bdot

prove that | vec axx vec b|=( vec adot vec b)t a ntheta, w h e r e theta is the angle between vec a a n d vec bdot

Solve (vec a timesvec a)*vec b

If |vec a+vec b|=|vec a-vec b| .Prove that the angle between vec a and vec b is 90^(@) ?

If |vec a|+|vec b|=|vec c| and vec a+vec b=vec c, then find the angle between vec a and vec b

Let vec a,vec b,vec c are three non-zero vectors and vec b is neither perpendicular to vec a nor to vec c and " (vec a timesvec b)timesvec c=vec a times(vec b timesvec c) .Then the angle between vec a and vec c is: