[最新] 2tanx/1 tan^2x=2sinxcosx 977633-2tanx/1+tan^2x=2sinxcosx saelokijpo36

Here's one way substitute for tan(x) to get This substitution changes the right side and the equation becomes Get rid of the denominator...

画像 1 tan^2x formula 115302 saelokijpo36

Sin 2x = 2tan(x) /(1 tan 2 (x)) So sin 2A = 2tan(A) /(1 tan 2 (A)) Putting the value of tan A = 4/3, we get Sin 2A = 2(4/3) /(1 (4/3) 2) Sin...