What is the algebraic form of the arithmetic sequence 7,11,15,...?
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Answer:
4n + 3
where n is any no.
Step-by-step explanation:
First term (a) = 7
common difference (d) = second term - first term
= 11 - 7 = 4
nth term = a + (n - 1) d
= 7 + ( n-1) × 4
= 7 + 4n -4
= 4n + 3
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