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 ( 81+ )
Otras preguntas
which party did william h taft represent in 1912
what is the solution to 7 • p = –56? a. p = –49 b. p = –8 c. p = 8 d. p = 49
What is the shape of the following distribution? {9, 10, 10, 11, 11, 12, 12, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 17, 18, 1
a ____ visually depicts a relationship between two variables
Write an equation and solve to show the prouduct of 2,830 and 3
Which of the following words can be used as a noun? A. Younger B. Love C. If D. Happily
Which of the following words can be used as a noun? A. Younger B. Love C. If D. Happily
Summary of weathering , erosion , and deposition
TRUE or FALSE 1. Health related factors refer to coordination, agility, power, speed, balance, and reaction time. 2. There are some aspects of fitness that we h
When is the difference between two decimals an integer?
