Tan2x = 2tanx/ 1 tan²x What is the value of sin 225 degree?LS=3732 RS=3732 Yes, if the term at the bottom is tan^2 x, you typed tan^x, and I read it as tan x I got the proof, give me a bit of time to type it I'm sorry Mr Reiny you are right it is tan^2x LS= 2tanx/ (1tan^2x) 1/ (2cos^2x 1) = 2sinx/cosx 1/ (1sin^2x/cos^2x) 1/ (2cos^2xProduct identities function between any two functions is equal to those two functions being multiplied, eg, tan and cos multiply to sin OR for two functions opposite each other, their product is equal to one eg, tan and cot reciprocal identities can be found by going through the one, eg, sin to csc is 1/csc
212 8 4 8 S 1 2 Tanx Tanx Sec X Dx A Log S Math
