If `veca and vecb` are prependicular vectors, `|veca + vecb|= 13 and |veca|=5,` find the values of `|vecb|.`

If veca an vecb are perpendicular vectors, |veca+vecb|=13 and |veca|=5 , find the value of |vecb| .

If |veca|=|vecb|=|veca+vecb|=1 then find the value of |veca-vecb|

If veca and vecb are two non collinear unit vectors and |veca+vecb|=sqrt(3) then find the value of (veca-vecb).(2veca+vecb)

If |veca|=2, |vecb|=5 and |vecaxxvecb|=8 then find the value of veca.vecb

If veca and vecb are two vectors, such that |veca xx vecb|=2 , then find the value of [veca vecb veca] xx vecb .

If a,b are the magnitudes of vectors veca & vecb and veca.vecb=0 the value of |vecaxxvecb| is

If veca and vecb are non - zero vectors such that |veca + vecb| = |veca - 2vecb| then

if veca and vecb are unit vectors such that veca. vecb = cos theta , then the value of | veca + vecb| , is

If veca" and "vecb are any two vectors such |veca+vecb|=|veca-vecb| find the angle between veca" and "vecb

If veca, vecb are unit vectors such that |veca +vecb|=1 and |veca -vecb|=sqrt3 , then |3 veca+2vecb |=