If ` vecalpha=3 hat i+4 hat j+5 hat k` and ` vecbeta=2 hat i+ hat j-4 hat k` , then express ` vecbeta` in the form of ` vecbeta= vecbeta_1+ vecbeta_2,` where ` vecbeta_1` is parallel to ` vecalpha` and ` vecbeta_2` is perpendicular to ` vecalpha` .

Answer

A, B, C, D