Let `veca` and `vecb` be two distinct three dimensional vectots. Then the component of `vecb` that is perpendicular to `veca` is given by

If veca and vecb are two vectors such that |veca+vecb|=|veca| then prove that vector 2veca + vecb is perpendicular to vector vecb .

If veca and vecb are two vectors such that |veca+vecb|=|veca| , then prove that the vector 2veca+vecb is perpendicular to vector vecb .

If veca , vecb are two vectors such that | (veca+vecb)=|veca| then prove that 2 veca + vecb is perpendicular to vecb.

Let veca and vecb be two unit vectors. If the vectors : vecc=veca+2vecb and vecd=5veca-4vecb are perpendicular to each other, then the angle between veca and vecb is :

If veca and vecb are two unit vectors such that veca + 2 vecb and 5 veca - 4 vecb are perpendicular to each other, then the angle between veca and vecb is :

Let veca,vecb, " and " vecc be three vectors such that |veca|=3,|vecb|=4,|vecc|=5 and each one of the being perpendicular to the sum of the other two, find |veca+vecb+vecc|.

Let veca,vecb and vecc are vectors such that |veca|=3,|vecb|=4and |vecc|=5, and (veca+vecb) is perpendicular to vecc,(vecb+vecc) is perpendiculatr to veca and (vecc+veca) is perpendicular to vecb . Then find the value of |veca+vecb+vecc| .

Let veca and vecb be unit vectors that are perpendicular to each other l. then [veca+ (veca xx vecb) vecb + (veca xx vecb) veca xx vecb] will always be equal to