If `vecr=3vecp+4vecq` and `2vecr=vecp-3vecq` then

If unit vectors hati and hatj are at righat angle to each other and vecp=3hati+3hatj,vecq=5hati,4vecr=vecp+vecq, then 2vecs=vecp-vecq (A) |vecr+kves|=|vecr-kvecs| for all real k (B) vecr is perpendicular to vecs (C) vecr+vecs is perpendicular to vecr-vecs (D) |vecr|=|vecs|=|vecp|=vecq|

Given vecP. vecQ=|vecPxxvecQ| and vecR=vecP+vecQ then |vecR| is

If vecP+vecQ=vecR and vecP-vecQ=vecS , prove that vecR^2+vecS^2=2(vecP^2+vecQ^2)

If vecpxxvecq=vecr and vecp.vecq=c , then vecq is

If vecpxxvecq=vecr and vecp.vecq=c , then vecq is

If vecP + vecQ = vecR and vecP - vecQ = vecS , then R^(2) + S^(2) is equal to

If vecP + vecQ = vecR and vecP - vecQ = vecS , then R^(2) + S^(2) is equal to

if vecP +vecQ = vecP -vecQ , then