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OpenStudy (anonymous):
What is the 20th term of the arithmetic sequence 2, –4, –10, … ? –130 –124 –118 –112
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OpenStudy (inkyvoyd):
There's two formulas for arithmetic sequence.
OpenStudy (inkyvoyd):
Mainly, a1=a1+(n-1)d
OpenStudy (inkyvoyd):
Do you know of this formula?
OpenStudy (inkyvoyd):
@nyan21
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