savb517
savb517
20-02-2017
Mathematics
contestada
solve the trigonometric equation
3-3cosx=2 sin^2 x
Respuesta :
Amena2000
Amena2000
25-02-2017
= 3 - 3cos x - 2(1- cos^2 x)
= 2cos^2 x - 3cos x + 1
=(cos x -1)(cosx - 1/2)
now cos x = 1 or cos x= 1/2
draw a graph we get = + ve values
hence .. 0 ,180,360 and 60,240, degrees in range x<2pi
Answer Link
VER TODAS LAS RESPUESTAS ( 55+ )
Otras preguntas
Which group is not served by a professional organization? lawyers steel workers school librarians pharmacists
Which of the following best describes the golden age of Islam
Most slave traders were _____. A. private merchants B. not working for European governments C. not interested in profits D. members of European navies
The links of each side of a triangle is one of three consecutive numbers. If the perimeter is 48, what is the length of the longest side
solve for r v=1/3*pie*r^3
I need help describing what happens in this poem with examples
you have $123.50 in quarters and dimes that are 1202 coins altogether which system of equations can you use to find the number of each type of coin you have ?
Explain 3x+2=5 , in writing, how to solve the following expression. You are restricted from using the words below: subtract, divide
how is justice carried out in America?
Why was the middle class the largest among white colonists?
