Multiple choice

What is the 58th term of the following sequence? - 7, - 3, 1, ...

  1. 221

  2. 223

  3. 226

  4. 229

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A Correct answer
Explanation

This is an arithmetic progression with a = -7 and d = 4. The 58th term = a + (n-1)d = -7 + (57 * 4) = -7 + 228 = 221.

AI explanation

This sequence is an arithmetic progression with the first term a equal to -7 and a common difference d equal to 4. To find the 58th term, use the formula for the nth term of an arithmetic progression: Tn = a + (n - 1)d. Substituting the known values gives -7 + (58 - 1) * 4, which simplifies to -7 + (57 * 4) and results in 221.