Question

Consider arithmetic sequence 3, 10, 17
What is the algebraic expression of this sequence?

Answer 1

Answer: 7n -4  is the algebraic expression

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Step-by-step explanation:

here,

First term ( a ) = 3

Common difference  ( d )= 10 -3 = 7

So,

t n = a + (n-1 )d

      = 3 + ( n -1 ) *7

      = 3 + 7n - 7

  = 7n -4