How do you find the amplitude, period and graph #y=sin(4theta)#?

1 Answer
Jan 28, 2018

Amplitude= 1
Period= #pi/2#

Explanation:

Amplitude changes when there is a number out in front of sin, so in this case it is 1

Period = #(2pi)/n#
= #pi/2#

To graph,
Sin(4#theta#) must complete 1 wave at #pi/2# so will complete 4 waves in the same distance that sin(#theta#) completes 1 cycle.

https://www.desmos.com/calculator A good website for graphing