2cos(3x)=-sqroot3
Cos(3x)= -sqroot3/2
Cos is negative in quadrant 2 and 3 so
3x= 5pi/6 and 7pi/6 x= 5pi/18 and 7pi/18
Bella W.
asked 10/29/202cos(3x)=-sqroot3
Cos is negative in quadrant 2 and 3 so
3x= 5pi/6 and 7pi/6 x= 5pi/18 and 7pi/18
Get a free answer to a quick problem.
Most questions answered within 4 hours.
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.