Katerwisebriamosem
Katerwisebriamosem
21-11-2016
Mathematics
contestada
2cos^2x+3cosx-2=0 ...?
Respuesta :
syed514
syed514
21-11-2016
Its like a polynomial.
cosx=x
so it'll be like
2x^2+3x-2=0
(2x−1)(x+2)
which makes your life easy because you do not have to solve cos(x)=−2 because it cannot be, so only solve cos(x)=1/2
Answer Link
VER TODAS LAS RESPUESTAS ( 94+ )
Otras preguntas
There are 5 radar stations and the probability of a single radar station detecting an enemy plane is 0.65 and the probability of not detecting an enemy plane is
Today, the age of fossils is most commonly determined using which approach? 1) Relative dating in sedimentary sequences 2) Radiocarbon dating 3) Uranium-lead is
Finite well probability Proctor A one-dimensional finite quantum well for an electron extends from x = 0 to x = L and has at least two bound states; the ground
Identify file backup methods which of the following are good backup methods you can use to protect important files and folders from loss in the case of a hard d
Review and make note of the answers recorded on the ACE and Developmental Trauma Screening. Write below any additional questions for the minor and consider what
When conducting profit center analysis, what is the default base to allocate a general overhead account?a. Net Profit (before tax) b. Total Operating Expense c.
The joint density of x and y is given as f(x,y)=k*e^(-((x/4) * (y/2))) for 0
In the chemical reaction Mg(s) +2HCl (aq) --------> MgCl2(aq) + H2 (g) I don't understand how the 2 in 2HCL got there. Can someone explain that to me please?
What are the two types of characterization?a.open and closedb.indirect and directc.imtermal and externald,forward and backward
This table shows statistics about the US population in 2010. A table titled U S Population by age group (2010). Column 1 labeled age group: under 18, 18 to 24,
