justinelee127
justinelee127
02-06-2017
Mathematics
contestada
rewrite 2tan3x in terms of tanx
Respuesta :
LammettHash
LammettHash
02-06-2017
[tex]2\tan3x=2\tan(2x+x)=\dfrac{2\tan2x+2\tan x}{1-\tan2x\tan x}[/tex]
Use the same identity to expand [tex]\tan2x[/tex].
[tex]\tan2x=\tan(x+x)=\dfrac{\tan x+\tan x}{1-\tan x\tan x}=\dfrac{2\tan x}{1-\tan^2x}[/tex]
[tex]\implies2\tan3x=\dfrac{2\dfrac{2\tan x}{1-\tan^2x}+2\tan x}{1-\dfrac{2\tan x}{1-\tan^2x}\tan x}[/tex]
[tex]2\tan3x=\dfrac{2\tan x\left(\dfrac2{1-\tan^2x}+1\right)}{1-\dfrac{2\tan^2x}{1-\tan^2x}}[/tex]
[tex]2\tan3x=\dfrac{2\tan x\left(2+1-\tan^2x\right)}{1-\tan^2x-2\tan^2x}[/tex]
[tex]2\tan3x=\dfrac{2\tan x(3-\tan^2x)}{1-3\tan^2x}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 58+ )
Otras preguntas
You will get 18 points for this, so what does superfradgalisticexpialadoius mean in French? Look up Mary poppins songs and you will see this song and to know t
20 POINTS!!!!!!!!! Which data sets could be used to create the box plot below? 4, 11, 8, 12, 1, 6, 14 10, 6, 9, 14, 1, 6, 12, 7 14, 10, 6, 9, 11, 8, 1 6, 8, 11
round 4.2894 to two decimals
1802 health and morals of apprentices act
Which of the following best states the constitutional principle of limited government A) Government can only do what the courts give it authority to do B) gover
Number the events from earliest (1) to most recent (6) to outline the development of the cell theory. Anton van Leeuwenhoek observed small organisms he called
Determine the mean of 28,40,53,39,45
Fungal cell walls are composed of what material?
for the given expression, use the Commutative Property of Multiplication to enter an equivalent expression. a b =
Please help! C is highlighted, but I’m not sure if it is correct. I give brainliest!