Recent content by sushant

Answer I guess this can be solved in eitherof following 2 ways.: 1. Using formula of cosx=1-(x^2)/2!+(x^4)/4!... so that (1-cosx)=x^/2-(x^4)/4!... =x^2[1-(x^2)/4!...] so that Lt x->0 of (1-cosx)/x^2 becomes : =Lt x->0 of 1/2[1-(x^2)/4!...] =1/2...