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 ( 89+ )
Otras preguntas
When did hemingway say "It is only the details of how he lived and how he died that distinguish one man from another"
Draw a highly magnified view of a sealed, rigid container filled with a gas. Then draw what it would look like if you cooled the gas significantly but kept the
The dysfunction of ______________ may be related to the development of disorders involving theory of the mind as well as autism.
How does the river contribute to one of the theories of landform development?
Amy believes Jo could be content with Professor Bhaer because _____. Jo was just saying she could love a poor man he is young and handsome Jo loves the language
------------a would be most interested in the function of the emotion of fear in preparing us to deal with emergency situations.
01.03 MC) Choose the correct form of despertarse to complete the sentence. Sara y yo ________ a las ocho los lunes y viernes. a. se despierta b. me despi
as a retired enlisted member of the Navy with 30 years of active service, when, if ever, can you be ordered back to active duty without your consent?
The management staff at Doc's Motorcycles believes the company has a social responsibility to its community. They believe that the company can have the greatest
Ernie es dueño de una bomba de agua. Ya que bombear grandes cantidades de agua es más complicado que bombear cantidades pequeñas, el costo de producir una bo
