Find the point of intersection of f(x):cos(x) and g(x):sin(2x) in the intervall 0;Pi/2
is there no way to find the point but by approximation?
List of trigonometric identities - Wikipedia, the free encyclopedia contains probably anything you will ever need.
This is way to complicated, I dont even see which formula are relevant for my level of mathematics. I'd need a site on which the basic rules are listed, which i need for basic calculus exercises. Unfortunately i either found way to complex or way to simple sites...