Amplitude, maximum and minimum, and period?

Question

Please help describe the following graphs of y! Amplitude, maximum and minimum, and period

1. Y = 3sin(1/3)x

2. y = tan (2A)

Answer 1

1)amplitude =3
maximum and minimum 3 and -3 at 1/3x= (2k+1)pi/2 so
x=(2k+1)*3/2 pi
1/3=2pi*1/T so T(period) = 6pi
2) For 2A==> (2k+1)pi/2 so A==> (2k+1)pi/4 tan(2A)==>infinity
so there are no max nor min nor amplitude
The period is pi/2

Answer 2

1. amp->3
max.-> 3
min-> 3
period-> 360/(1/3)=1080