1) Sin 2x cos 2x = 1 2) Tan2x = 1 sec 2x 3) Cot2x = 1 cosec 2x Along with the knowledge that the two acute angles are complimentary ie they add to 90° and you can solve any right triangle If you know two of the three sides, you can find the third side and both the acute anglesIntegral of tan^2x, solution playlist page http//wwwblackpenredpencom/math/Calculushtmltrig integrals, trigonometric integrals, integral of sin(x), integFormula of tan2x 2tanx/1tan^2x 31K views View upvotes 9 4 Newton Kumar Answered 2 years ago 59K views View upvotes 9 4 Subhasish Debroy, Former SDE at Bharat Sanchar Nigam Limited Answered 1 year ago Author has 37K answers and 24M answer views tan2x = 2tanx/(1tan^2x) How!
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