Trigonometric Identities (tanx + secx - 1)/(tanx - secx + 1) = (1 + sinx)/cosx MCR3U Challenge

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Aww, man!...Difference of cubes...had to go way back in algebra to remember that one😊

kevin-ggir
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Thanks for good work, i need help on
Proving Tan 2x= 2tan hx/1+tanh(Squared)x

princehelinsburg
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So very helpful! Thank you kind sir. 😁👏

kevin-ggir