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The frequency of oscillation of a compound pendulum is

A. 2π. √[gh/(kG² + h²)]

B. 2π. √[(kG² + h²)/gh]

C. (1/2π). √[gh/(kG² + h²)]

D. (1/2π). √[(kG² + h²)/gh]

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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