March 02, 2017
Go to the class website and check the Solutions WS(5.3-5.4).
March 02, 2017
March 02, 2017
Extra Practice:
Pg.425: 10, 20
Pg.432: 8, 21, 46
you have done this one in HW
March 02, 2017
March 02, 2017
March 02, 2017
March 02, 2017
March 02, 2017
2cos2x + cosx - cos2x = 0
2cos2x + cosx - (2cos2x - 1) = 0
2cos2x + cosx - 2cos2x + 1 = 0
cosx = -1
x= π
March 02, 2017