How do you find the other five trigonometric functions of x if #cosx = 3/5#?
1 Answer
It;s crucial to be familiar with the Pythagorean trigonometric identity and trigonometric identities corresponding to relations of sine and cosine with other trigonometric functions.
Explanation:
First we use the Pythagorean trigonometric identity:
Now, if we knew more about the angle
CASE 1:
Using basic trigonometric identities:
CASE 2:
Using basic trigonometric identities: