YouTube on MSNOpinion

Prove an identity by rationalizing the denominator

👉 Learn how to verify rational trigonometric identities involving the addition and subtraction of terms. To verify ...
YouTube on MSNOpinion

Prove an identity by adding two fractions

👉 Learn how to verify rational trigonometric identities involving the addition and subtraction of terms. To verify ...
Scientific American

2 High School Students Have Proved the Pythagorean Theorem. Here’s What That Means

Two high school students proved the Pythagorean theorem in a way that one early 20th-century mathematician thought would be impossible: by using trigonometry. Calcea Johnson and Ne’Kiya Jackson, both ...