Question

Which of the following have a frequency factor of b=1? A sine function whose period is 2pi radians. A sine function whose x-coefficient is 2pi. A cosine function with no phase shift whose x-coefficient is 1. A sine function whose graph shows 2 cycles from -4pi radians to 0. A sine function whose graph shows 2 cycles from 0 to 2pi radians. A cosine function whose graph shows 4 cycles from 0 to 4pi radians. A cosine function whose graph shows 1 cycle from 3pi radians to 5pi radians.

Answer 1

Answer:

2pi/3 has the same Sin, Cos, & Tan as pi/3 in QI except for the SIGNS.

2pi/3 is in QII so Cos is negative and Tangent is negative, Sine is still positive.

Sin 2pi/3 = √(3) / 2

Cos 2pi/3 = -1/2

Tan 2pi/3 = -√3

Step-by-step explanation: