Math, asked by harinikeshav732002, 11 months ago

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

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Answered by tejaswi77

19

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

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