help please

Question

Find the reference number for each value of t.

(a)    

t = 

5π

4

(b)    

t = 

8π

3

(c)    

t = − 

4π

3

(d)    

t = 

π

6

 

Answer 1

Step 1:

(a)

The value of is .

Find the reference number .

The reference number associated with is the shortest distance along the unit circle between the terminal points determined by and -axis.

Reference number is 

Step 2:

(b)

The value of is .

Find the reference number .

Reference number is 

Step 3:

(c)

The value of is .

Find the reference number .

Reference number is 

Step 4:

(d)

The value of is .

Find the reference number .

Reference number is 

Solution:

(a)

(b)

(c)

(d)