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 ( 38+ )
Otras preguntas
A scientist wants to raise the temperature of a 0.10-kilogram sample of glass from –45°C to 15°C. How much heat energy is required to produce this change in te
Is 730.921 less than, greater than, or equal to 730,921?
How to do 103,727,495 in expanded form
Tom doesn't really want to give away blue marbles and would like to change the probability that he chooses a blue marble to 1/10.How many marbles that are not b
each year Lizzie's school purchases students agenda books, which are sold in the school store. This, the school purchased 350 books at a cost of $1,137.50 if th
19-10x+4=4x-5 i dont understand this equation
19-10x+4=4x-5 i dont understand this equation
Derive identity sin(3x) = 3 sinx−4 sin³x
Which condition was most necessary for a monarch to gain power? why?
Solve by completing the square X squared -6x+8=0
