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 ( 92+ )
Otras preguntas
how many valence electrons does carbon have available for bonding to other atoms a. two b. four c. six d. eight
2. which equation represents this sentence? one-half the sum of a number and four is three less than the quotient of five and the number. question 5 options: 12
Rapacious (adjective) in a sentence.
atoms of different elements area. too hard to compare.b. exactly the same.c. different from each other.
What should you include in the closing paragraph of your letter of complaint?
Harry has medical insurance through an HMO. He would like to see a podiatrist about the foot pain he has been having. What is the first step he will have to tak
in the combustion of hydrogen gas, hydrogen reacts with oxygen from the air to form water vapor, if you burn 50.0g of hydrogen and produce 447g of water how muc
based on hierarchical organization,order these terms from smallest to largest. carbon DNA water skin cell mitochondra
need 10 sentences in total with am not, is not, are not please
John has 2456 pennies in his coin collection he has the same number of pennies in each of the three boxes estimate to the nearest hundred the number of pennies
