safax
safax
01-07-2016
Mathematics
contestada
verify the identity cot(x-pi/2)=-tanx
Respuesta :
NiedzielnyMatematyk
NiedzielnyMatematyk
03-07-2016
[tex]\cot(x-\frac{\pi}{2}) = \dfrac{\cos(x-\frac{\pi}{2})}{\sin(x-\frac{\pi}{2})} =\dfrac{\cos(-(\frac{\pi}{2}-x))}{\sin(-(\frac{\pi}{2}-x))} =\dfrac{\cos(\frac{\pi}{2}-x)}{-\sin(\frac{\pi}{2}-x)} =\\=-\dfrac{\sin x}{\cos x} = -\tan x[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 13+ )
Otras preguntas
the structure of the chinese communist party is similar to that of _____________.
I'd d = rat and if r = 60 and t = 4, what does d equal?
What is an example of a chemical factor indicating the health of a freshwater body of water? A. pH levels B. temperature C. turbidity D. plant life
Problem solving is an active effort to attain a goal that is __________. a. physically but not cognitively attainable b. impossible to solve c. not readily a
Simply this expression 4(-8x + 5) – (-33x – 26) = totally lost on this one can someone please help me :) and please explain how you figured this out
A spider building its first web does so perfectly. What type of behavior is this?
A person who doesn't have enough calcium in his or her diet is at risk for developing bones that are weak and break easily. This condition is known as a. osteo
state four elements living things are made up of?
in rectangle KLMN, KM = 10x+24 and KN = 64 find x
In modern times, do you think Americans have gained/maintained liberty in the way the Founding Fathers described it in the Constitution? Why or why not?
