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 ( 13+ )
Otras preguntas
The ledger of Mai Company includes the following accounts with normal balances: D. Mai, Capital $10,100; D. Mai, Withdrawals $1,350; Services Revenue $24,000; W
Apply the distributive property to factor out the greatest common factor. 44+48=
What is the correct chronological order of the steps leading to protein synthesis? rRNA, mRNA, DNA, protein mRNA, DNA, rRNA , protein DNA, mRNA, rRNA, protein r
Presented below are definitions of certain terms. Select the appropriate term from the dropdown list. Definitions 1. Quantity of input required if a production
ou invested 7000 between two accounts paying 4% and 9% annual interest, respectively. If the total interest earned for the year was $430 how much was invested
Mississippi River Shipyards is considering the replacement of an 8-year-old riveting machine with a new one that will increase earnings before depreciation from
en la estructura del catálogo se destacan… a.características y propiedades del tema b.anclaje o presentación del tema c.solo es importante el primero element
four consecutive numbers have a sum of –30. What number is x?
pls help me anyone! pls im so stuck here
A hot air balloon is released into the air. During its straight ascent, the angle of elevation was 15° and, 3 minutes later, the angle of elevation increased 20
