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 ( 43+ )
Otras preguntas
Completa la oración con la palabra correcta. Cada vez que veo a mi madre yo la ______. Question 1 options: abrazo abandono acompaño admito
Approximate the interest rate for a lease that comes with a money factor of 0.0027. a. 0.65% b. 1.13% c. 6.5% d. 11.25%
What are indirect object pronouns in spanish?
Give the iupac name
Where can you find a Panamanian wildlife refuge? Next to the Panamá Canal An hour's flight from La Ciudad de Panamá Ten miles north of the capital In the heart
how many atoms of each element are in the products?
Which best describe the structure of DNA? A.) Purine backbones with pyrimidines on the inside. B.) Base backbones with sugar on the inside. C.) Sugar-phosphate
Rachel Jogged along a trail that was 1/4 of a mile long. She jogged along the trail 8 times. how many miles did Rachel Jog in all?
Stefan buys a melon and divided into six servings he eat one third of the melon over the weekend how many slices of melon does Stephanie eat over the weekend
Largest city in Pakistan
