Solution Found!
In Exercises 510, find the exact value.cos 12p/32
Chapter 4, Problem 4.1.1.558(choose chapter or problem)
QUESTION:
In Exercises 5–10, find the exact value.
\(\cos\ (2 \pi / 3)\)
Questions & Answers
QUESTION:
In Exercises 5–10, find the exact value.
\(\cos\ (2 \pi / 3)\)
ANSWER:Step 1 of 4
The given angle is
At first we will sketch the angle on the coordinate axis.
Then we will label a reference angle which can obtained by subtracting or adding the given angle with the multiples of . So that we can build a reference triangle whose base lies on the -axis.