Question

i forgot the arithmatic equations. pls help me

Answer 1

This arithmetic sequence has the first term a1= 4, and a common difference of −5. Since we want to find the 125th term, the “n” value would be n = 125. The following are the known values we will plug into the formula: ... Example 3: If one term in the arithmetic sequence is a21 = –17 and the common difference is d = –3.