samoka
samoka
02-04-2017
Mathematics
contestada
Does anyone can help me to prove that ...
Respuesta :
ghanami
ghanami
02-04-2017
hello :
by identity : cos²(x)+sin²(x) = 1
divide by cos²(x) :
cos²(x) /cos²(x) +sin²(x)cos²(x)/ = 1/cos²(x)
1+sin²(x)cos²(x)/ = 1/cos²(x)
1+ (sin(x)/cos(x))² = 1/cos²(x)
1+tan²(x) = 1/cos²(x)
conclusion :
tan²(x) = 1/cos²(x) -1
Answer Link
VER TODAS LAS RESPUESTAS ( 19+ )
Otras preguntas
If you could help me out, thanks.
Which of the following questions would be best examined using the theme ofpolitics and power?C. Why do some states have higher populations of ethnic minoritiest
which tribe was not apart of the Point Elliott Treaty
Un verbo conjugado indica la persona gramatical que ejecuta la acción, otro nombre para éste es:
Question 1 (1 point) Personal assistants may complete tasks such as: a completing errands like shopping b running household maintenance c all of the above d
Which medical issue requires a medical specialist? a. Vaccination b. Pregnancy test c. Cancer diagnosis d. Blood pressure check
for brainliest answer!!! choose a world event that is taking place in a country (Celebration, war, famine, crisis, etc). Then take one article from a news sour
describe two diffrent ways you could find the measure of
1. ¿Quién pintó Figura en una Ventana?
How did the borders change between North Korea and South Korea throughout the war? (1 Point) A.) North Korea dominated the war, gaining South Korean lands. B.)
