verify the identity. 2tang 1-tanx 1

Question

Question

verify the identity.
2tang 1-tanx 1

math trigonometry

Answer 1

Answer #1

cons the left side insidering 2tana 2 Sini cego 1 L tann I sinan Coro 2 Simi 00971 1) costu-sinn cogen 2 sinni X 13 requis -

Answer 2

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