For any arithmetic progression

MATHEMATICS · Single correct · CBSE · Mathematics · Arithmetic Progressions · Arithmetic Progressions

Problem

For any arithmetic progression (an)(a_n), which of the following equations is ALWAYS true? (a) a3+a7=2a6a_3 + a_7 = 2a_6 (b) a1+a4=2a3a_1 + a_4 = 2a_3 (c) a1+a5=2a3a_1 + a_5 = 2a_3 (d) a2+a6=2a5a_2 + a_6 = 2a_5

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