BQ#2: Unit T Concept 1 Intro: Trig Graphs and Unit Circle

1) How do Trig Graphs relate to the Unit Circle?
Period? - Why is the period for sine and cosine 2pi, whereas the period for tangent and cotangent is pi?

We use ASTC, and as you can see in this picture, i've labeled them already. For Sine, it is ++--, and i give a little visual in the bottom. For Cosine, it is +--+ and i too put another visual. For Tangent/Cotangent, it is +-+-, and this one is different from the other two, because it only take pi to make a period/revolution as the other two took 2pi, to make the period/revolution..


Amplitude? – How does the fact that sine and cosine have amplitudes of one (and the other trig functions don’t have amplitudes) relate to what we know about the Unit Circle?

Sine and Cosine are the only two that have r as the denominator. r=1. Therefore, they cant be bigger than 1.