Math, asked by surmalik933, 8 months ago

= 15, find a and a,
vi) given a = 2, d = 8, S = 90, find n and a
(widiyat 5 kha se aaya

Answers

Answered by rathorkanakdrg69906

3

Answer:

u can factorize 90n2-86n-180 and can find n

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