A=B the angle between a and b is 90 then a+b =? Ans : root 2a want the sol Share with your friends Share 1 Shivangi Karnatak answered this Please find this answer 3 View Full Answer Basudeb Chatterjee answered this It's correct. 0 Arka Mazumdar answered this See Priyanshi, you knw that, R=A+B right? now R=root(A2+B2+2ABcos(theta)) here (theta)=90o so cos90o=0 Thus R=root(A2+B2) now as R=A+B thus A+B=root(A2+B2) and as A=B, thus A+B=root(2A2) and you get, A+B=root2A Hope it helps you..^_^ 2
