Write Cos 20° in terms of sin.?
I don't get it, i tried watching videos but still gets me nowhere. pls help
I don't get it, i tried watching videos but still gets me nowhere. pls help
1 Answer
Apr 3, 2018
Sine and cosine are cofunctions. Therefore, the relationship
Explanation:
Cofunctions are pairs of trigonometric functions with the simple relationship, where, for example,
This means that any