1.

Find the sum of 11 terms of an ap whose middle term is 30

Answer» Thanks guys me confuse ho gayi thii
Baad me common aa jaayega
Bro waha pe solve mat karo means a+5d=6 hi rhene do
In this we have a6 =30 so,a+ 5d =30, a=30-5d, S6=n\\2(2a +(n-1)d), 11/2(2×(30-5d)+(11-1)d),11/2(60-10d+10d),11/2×60,330
330


Discussion

No Comment Found