Is √1−cos2θ=−sinθ true?
1 Answer
Sometimes
Explanation:
It helps to know some Pythagorean identities:
www.mathguide.com
If we solve for the first one, we can see that
Simplify the left side:
Since
Sometimes
It helps to know some Pythagorean identities:
www.mathguide.com
If we solve for the first one, we can see that
Simplify the left side:
Since