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Find the 45th term of the arithmetic sequence an = 2 + 4(n − 1).
145
182
178
264

Sagot :

The 45th term of the arithmetic sequence is 178. Option C

How to determine the term

Given the arithmetic sequence formula as;

an = 2 + 4(n − 1)

we have n = 45

Let's substitute the value of 'n' into the formula;

a = 2 + 4( 45 - 1)

expand the bracket

a = 2 + 4(44)

a = 2 + 176

a = 178

The 45th term is 178

Thus, the 45th term of the arithmetic sequence is 178. Option C

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