Math, asked by ahnafibnalam, 3 months ago

The number of terms in an arithmetic progression is 40 and the last term is -54. Given that the sum of the first 15 terms added to the sum of the first 30 terms is zero, calculate the first term and the common difference.

Answers

Answered by Anonymous

4

Answer:

t¹ = 5 and d = 3

Step-by-step explanation:

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