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If 3rd, 8th and 13th terms of a GP are p, q and r respectively, then which one of the following is correct?

Options

  1. Aq^2=p r
  2. Br^2=p q
  3. Cp q r=1
  4. D2 q=p+r

Correct answer

A. q^2=p r

Step-by-step solution

aligned & T₃=A R^2=P & T₈=A R^7=q & T₁₃=A R¹²=r & here q^2=P . r . & i.e. (A R^7 )^2= (A R^2 ) (A R¹² ) aligned

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