JEE Advanced Mathematics question

MathematicsSequence and SeriesJEE Advanced

If then are in

Answer: (C)

Solution

Write .

From the first equality, , i.e.

+ = + ⇒ - = - . (1)

From the equality of the first and third expressions, $ = 3·Missing argument for \dfrac\dfrac{a_2 - a_3}{

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Question ID VK-107761