Problem 1. The first term of an arithmetic sequence is equal to 6 and the common difference is equal to 3. Find a formula for the n th term and the value of the 50 th term. Solution to Problem 1: Use the value of the common difference d = 3 and the first term a 1 = 6 in the formula for the n th term given above. See more
The common difference of an arithmetic sequence a 1, a 2, a 3, is, d = a 2 - a 1 = a 3 - a 2 = The n th term of an arithmetic sequence is a n = a 1 + (n−1)d. The sum of the first n terms of an
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