susanwalsh
susanwalsh
03-03-2017
Mathematics
contestada
tan x-1/tan x+1=1-cot x/1+cotx
Respuesta :
LammettHash
LammettHash
03-03-2017
[tex]\dfrac{\tan x-1}{\tan x+1}=\dfrac{\frac{\sin x}{\cos x}-1}{\frac{\sin x}{\cos x}+1}=\dfrac{\sin x-\cos x}{\sin x+\cos x}=\dfrac{1-\frac{\cos x}{\sin x}}{1+\frac{\cos x}{\sin x}}=\dfrac{1-\cot x}{1+\cot x}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 47+ )
Otras preguntas
Roberto comes running into the house visibly agitated. between roberto's sobs, his dad picks out "bike," "sledgehammer," "miguel," and "hate." after some coaxin
Who is the male lead in the re-make of the shaggy dog? tom hanks jim carrey tim allen robin williams?
What kind of tone does Henry's speech create, and how does it create that tone?
Which table represents the same linear relationship as the equation y = 3x +5?
Where does most air pollution in the United States come from?
Writing is often used to persuade, entertain, or inform. Cabeza de Vaca's journal was written to inform. Informational writing is usually
The long-run supply curve under pure competition is derived by observing what happens to market price and quantity when market:
HELP PLEASE !!! Find the measure of <2
Find the area of a sector with a central angle of 170° and a diameter of 9.1 cm. Round to the nearest tenth. A. 122.9 cm2 B. 30.7 cm2 C. 8.6 cm2 D
2.5 million deaths per is how many deaths per minute
