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The period of k y+ k y , where k=1+4+9+ 20 terms, is

Options

  1. A1435
  2. B2 1435
  3. C2

Correct answer

A. 1435

Step-by-step solution

k=1+4+9+ upto 20 terms aligned & k= n^2= n(n+1)(2 n+1) 6 , where n=20 & k= 20 21 41 6 =70 41=2870 aligned Period of tan k y is 2 2870 and period of k y is 2 2870 i.e. 1435 Required period = 1435

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