Asked by Charles

The 12th term of an AP is -41, given that first term is 3. Find the 20th term
Answered by R_scott
so ... 11 differences (1st to 12th terms) equals ... -41 - 3 = -44

the difference between consecutive terms is ... -44 / 11 = -4

the 20th term is 19 differences from the 1st term ... t20 = 3 + (19 * -4)
Answered by Joseph
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