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Class 10 Mathematics Arithmetic Progressions (AP)Introduction to APs and common difference.Expert

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In an AP, (a_{n+2}-a_n=18) for every (n). What is the common difference?

Answer and explanation

Correct answer: (9)

Moving two terms ahead changes the value by (2d), so (2d=18) and (d=9). In exams, count the number of jumps.

Related tags

Ap Term Gap Common Difference Introduction To Aps And Common Difference.Introduction To Aps And Common Difference Arithmetic Progressions (Ap)Arithmetic Progressions Ap Mathematics

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