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 ( 35+ )
Otras preguntas
Complete the AscendingAndDescending application so that it asks a user to enter three integers. Display them in ascending and descending order.An example of the
Which gesture would best help speakers indicate that they are receptive to new ideas? counting on their fingers holding a hand over their heart gesturing with o
During the last ten years oliver has played 1200 games of chess oliver has drawn 6% of the games he has lost 33% of the game calculatehow many games og chess ol
In your opinion, how important is it for organizations to enforce internal discipline (e.g., employee termination) in preventing occupational fraud in the workp
suppose you start with a single bacterium of streptococcus at hour 0 , and it has a generation time of 60 minutes. how many bacteria will you have at the end o
composition about my best friend
Mcq questions in psychology for nursing
The difference of a number and seven is twelve Write an equation to represent the sentence
Give a real-world example of an energy transformation that uses two of the following forms of energy: chemical, mechanical, nuclear, gravitational, radiant, ele
f(x)=3x-7 and g(x)=(1/3)x+7 are inverses of each other. .True .False
