Problem

Find the exact values of the six trigonometric functions of the given angle. Do not use a calculator.
5π3

Answer

Expert–verified
Hide Steps
Answer

Final Answer: sin(5π3)=32,cos(5π3)=12,tan(5π3)=3, csc(5π3)=23,sec(5π3)=2,cot(5π3)=13

Steps

Step 1 :The angle 5π3 is in standard position and it is a positive angle measured counterclockwise from the positive x-axis. The angle 5π3 is equivalent to π3 because 5π/3=2π+π/3, and 2π is a full rotation which brings us back to the same position.

Step 2 :The six trigonometric functions of π3 are well known. They are: sin(π3)=32, cos(π3)=12, tan(π3)=3, csc(π3)=23, sec(π3)=2, cot(π3)=13

Step 3 :So, the six trigonometric functions of 5π3 are the same as those of π3.

Step 4 :Final Answer: sin(5π3)=32,cos(5π3)=12,tan(5π3)=3, csc(5π3)=23,sec(5π3)=2,cot(5π3)=13

link_gpt