1.

in an ap whose first term is 2 and sum of first five terms is one fourth of the sum of next five terms. Show that a20=-112. Also find s20​

Answer»

Answer:

like this you get that -112is the term of a20 and the value of S20 is -1100 .The COMMON difference is -6. Hope you UNDERSTAND



Discussion

No Comment Found

Related InterviewSolutions