Find the nth term of the sequence 4, 10, 16 ,...

Assessment: WAEC SSCE - General Mathematics - 2002 (Objective) Subject: General Mathematics

Question 1 Report

Find the nth term of the sequence 4, 10, 16 ,...

Answer Details
The sequence 4, 10, 16,... is an arithmetic sequence because there is a common difference between every pair of consecutive terms. To find the common difference, we can subtract any term from the following term. For example: - The common difference between the first and second terms is 10 - 4 = 6. - The common difference between the second and third terms is 16 - 10 = 6. Since the common difference is 6, we can find the nth term of the sequence using the formula: nth term = first term + (n - 1) * common difference The first term is 4 and the common difference is 6, so we get: nth term = 4 + (n - 1) * 6 Simplifying this expression, we get: nth term = 6n - 2 Therefore, the correct answer is (A) 2(3n-1).

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