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Let t₁, t₂, t₃, be in GP. What is (t₁ t₃ t₂₁ )^ 1 11 equal to?

Options

  1. At₁₀
  2. Bt₁₀^2
  3. Ct₁₁
  4. Dt₁₁^2

Correct answer

C. t₁₁

Step-by-step solution

since, t₁, t₂, t₃ in G.P Let t_n=a r^ n-1 Now, (t₁ . t₃ . . t₂₁ )^ 1 11 aligned & = ( a ¹¹ r ¹¹⁰ )^ 1 11 = ar ¹⁰= t ₁₁ aligned

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