A Albi Junior Member Joined May 9, 2020 Messages 145 Sep 18, 2020 #1 Guys can someone help me with this trig identity? [MATH]2sin²\alpha+\frac{1+cos2\alpha}{1-cos2\alpha}+cos2\alpha=\frac{1}{sin²\alpha}[MATH][/MATH][/MATH] Last edited: Sep 18, 2020
Guys can someone help me with this trig identity? [MATH]2sin²\alpha+\frac{1+cos2\alpha}{1-cos2\alpha}+cos2\alpha=\frac{1}{sin²\alpha}[MATH][/MATH][/MATH]
D Deleted member 4993 Guest Sep 18, 2020 #2 Albi said: Guys can someone help me with this trig identity? [MATH]2sin²\alpha+\frac{1+cos2\alpha}{1-cos2\alpha}+cos2\alpha=\frac{1}{sin²\alpha}[MATH][/MATH][/MATH] Click to expand... If I were to do this problem I would express cos(2α) in terms of sin²(α) Please show us what you have tried and exactly where you are stuck. Please follow the rules of posting in this forum, as enunciated at: https://www.freemathhelp.com/forum/threads/read-before-posting.109846/#post-486520 Please share your work/thoughts about this problem.
Albi said: Guys can someone help me with this trig identity? [MATH]2sin²\alpha+\frac{1+cos2\alpha}{1-cos2\alpha}+cos2\alpha=\frac{1}{sin²\alpha}[MATH][/MATH][/MATH] Click to expand... If I were to do this problem I would express cos(2α) in terms of sin²(α) Please show us what you have tried and exactly where you are stuck. Please follow the rules of posting in this forum, as enunciated at: https://www.freemathhelp.com/forum/threads/read-before-posting.109846/#post-486520 Please share your work/thoughts about this problem.
P Paul Belino New member Joined Mar 21, 2016 Messages 27 Sep 18, 2020 #3 I cannot see a question. What exactly do you need to do? Prove it is true?
