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 ( 41+ )
Otras preguntas
Helpppp me pleas hurry
What is an equivalent ratio to 3/5?
8 is subtracted from 4 times the sum of 5 and 4.
given(33×-2) y+22=15
Shemegh Face Scarfs- Sandstorms are frequent and those who lived on the outskirts of the desert have to deal with the high winds and dangerous sands. To prevent
What is the scale factor of 18 and 54
Can someone help not bots either i dont want a link
Which term describes all four of these labeled numbers? A CD -3 2-1 0 1 2 3 O irrational numbers O rational numbers O mixed numbers O integers
Will exercising for 1 hour each day help you sleep better? Write a valid Hypothesis. Identify what the controls are. Design an experiment to test your hypothes
hello need help.. help meಥ‿ಥ thanks◉‿◉
