in an AP if the first term is 5 and the common difference is 2. if the last term is 53 find its middle term Share with your friends Share 2 Neha Sethi answered this Dear student Given first term =a=5common difference=d=2last term of AP=53let there be n terms in given AP⇒an=53⇒a+n-1d=53⇒5+n-12=53⇒n-12=48⇒n-1=24⇒n=25The middle term is given byn+12th term=25+12=13termSo a13=a+n-1d⇒a13=5+24×2⇒a13=53 Regards 1 View Full Answer Tanmaya Darisi answered this n=53+1/2=27 a=5 d= 2 n=27 An= 5+(27-1)2 =5+26 X 2 =5+52 =57 -1 Priyanshi answered this Tn=a+(n-1)d 53=5+(n-1)2 48/2=n-1 n=25 Therefore,n+1/2 26/2 =13 so 13th is the term T13=5+(13-1)2 =5+(12)2 =5+24 =29 4
