Google has been able to help with homework for quite some time now, while Lens features a step-by-step math solver. Google Search is now getting better at trigonometry, calculus, geometry, and physics ...

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 ...