Во Вложении!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question

Во Вложении!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

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Answer 2

1-cos^(2)t=sin^(2)t 
 1-sin^(2)t=cos^(2)t
  sin^(2)t\cos^(2) t=tg^(2) t