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 ( 41+ )
Otras preguntas
name each of the 5 steps in the PRICE treatment
A students cost for last semester at her community college was $2500. She spent $475 of that on books.what percent of last semesters college cost was spent on b
Yann will be x years old y years from now. How old was he z years ago?
what is the project manager?
How has culture or gender influenced your working practice?
The country recreation department cleared a 3/4 mile long walking trail in Washington Park. There will be a small sign every 1/12 mile along the trail, includin
Daniel puts $80,000 in an account that earns 0.6% interest compounded annually. How much interest does he earn after 15 years?
which president used term the buck stops here and what does it mean
Which term is defined as “promoting minority inclusion in educational and employment opportunities”?
In the structure of a muscle, several fascicles lie bundled together to forma muscle, just as several lie together to form compact bone tissue. Each muscle fib
