find the 20th term when ap is 6,10,14,18,22
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Step-by-step explanation:
If the sequence is denoted by the series ai. then ai=ai−1−6.
Setting a0=8. so that the first term is a1=2 (as given)
we have an=a0−(n⋅6)
For n=20. a20=8−20⋅6=8−120=−112.
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