JEE Main · 2024 · 27 Jan 2024 · Shift 1 · Binomial Theorem

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if and only if :
  1. (A)✓ Correct
  2. (B)
  3. (C)
  4. (D)

Answer: (A)

Solution

From , using , the equation becomes .

Since , this ratio lies in , so , i.e. . This gives .

Among the given options, only is consistent with this range.

JEE Main · 2024 · 27 Jan 2024 · Shift 1 · Single correct option

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