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 ( 85+ )
Otras preguntas
What is the circle that marshall is referring to and why is it vicious??
What scale factor was applied to the first rectangle to get the resulting image? Enter your answer as a decimal in the box. Bigger rectangle: 2.5
What government does the philippines have?
The controlled release of nuclear energy in a reactor is accomplished by: allowing the critical mass of fuel to react controlling a chain reaction controlling f
what happens if you get hit by a softball that is thrown at 95mph
How does richards support the union troops?
what two men were fans of the american system
Please help me on this
What fact would explain why rhetoric is important?
What is the solar process that results in production of energy?
