- From where did we get that DY/DX (SIN(X)= COS(X) COS(X)=-SIN(X) need proof please !?

Discover Questions

11/20 closer to 0,1/2,1? How do you find the range of -4x^2+8x-1? Find all solutions, real and non real X= 2x^2-7x+14? What are the differences between absorption and adsorption of a toxicant? If A and B are parallel nonzero vectors, which of the following is true?
A*B=0
A*B=AxB
A*B*=|A||B|
none of the above?