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 ( 59+ )
Otras preguntas
Vectors are: A. DNA molecules used to carry foreign DNA fragments into bacteria or other cells B. DNA molecules that can be joined with DNA fragments that
WRITE INCOMPLETE COMBUSTION OF ETHANE
HELPPP ME PLZZZZZZZZZZZZZZZZZZZZWhat is the measure of angle CED? m, because Triangle ABC is similar to triangle EDC m over 2, because Triangle ABC is congrue
How do I say "I like to write." in Korean?
List all of the physical quantities that affect the value of centripetal force.
What is the slope of the line shown?
What was a result of the French and Indian War? A. The colonists learned they didn't have much in common with the British. B. The colonists defeated th
Which of these is a geometric sequence ?
Add: 1⁄2 + 2⁄5 + 1⁄4 =
When less saline water enters a marginal sea above a return flow of saltier water, the circulation pattern is called:?
