In this video, I explain how to use Pythagorean identities to simplify trigonometric expressions. We focus on substituting 1-sin²θ with cos²θ to make the equation easier to work with, verifying the ...
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Factor and solve this trig equation
In this video I will show how to solve a trigonometric equation by factoring.
Mathematics students have cause to celebrate. A University of New South Wales academic, Dr Norman Wildberger, has rewritten the arcane rules of trigonometry and eliminated sines, cosines and tangents ...
The Pythagorean Theorem—discovered by the Greek mathematician Pythagoras in the 6th century BCE—is a cornerstone of mathematics. Simply stated as a 2 + b 2 = c 2, the theorem posits that the sum of ...
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