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 ( 37+ )
Otras preguntas
90 is 1/10 of what? please.
Beowulf slays Grendel in order to — A) save Hrothgar and the Danes from the monster B) prevent Grendel from invading the land of the Geats C) keep Herot from be
Which statements describe factors that led to the decline and defeat of the Aztec Empire? Choose all answers that are correct. A. The Aztecs had never seen stee
what is 28/50 as a decimal
give me 4 things you can taste in a forest
what is 43,080,700 in word form
Why do we need to learn math if we aren't going to use math in our lives?
how do you write 701,245 in two other forms?
What is the value of the 6 in 106534?
What numbers multiply to get 720
