Shakawaldgi
Shakawaldgi
02-09-2016
Mathematics
contestada
sec^2x+2sec=0. solve the equation for 0
Respuesta :
HomertheGenius
HomertheGenius
10-09-2016
u = sec x ( substitution )
u² + 2 u = 0
u ( u + 2 ) = 0
u = 0, or u = - 2
1/cos x = 0 1/cos x = - 2
(not accepted ) cos x = -1/2
x 1 = 2π/3, x 2 = 4π/3
Answer Link
VER TODAS LAS RESPUESTAS ( 84+ )
Otras preguntas
in 0.58, which digit is at the ones place?
Which was not a cause of the gradual decline and fall of the Western Roman Empire? the spread of Christianity economic hardships for Rome''s citizens invading b
how did the puritans get along with kings
Which of these elements has four valence electrons
Explain how John Brown's raid affected the slavery debate.
its important to (keep your chin up even if your team is losing the big game.) what does the idiom means
Which is an everyday situation for the math expression with the context provided? 14 – g; comparing people's ages A. Jack is 14. Maura is g years younger than
Who referred to the domino theory as a reason to support liberation of communist countries?
Visible blue light has a wavelength of about 0.0000475 centimeters. What is this measurement written in scientific notation? 4.75 × 10^4 centimeters 4.75 × 10^
describe how Rome contributed to the development of world languages
