Who are these people? What do they do? Complete the questions according to the answers. 1. —_wrote books about a) — Hans Christian

1)y'=cosx+2x; 2)y'=45x^8; 3)y'=(x-4)×(x+2); 4)y'=2x-3x-6+x^2-3x=x^2-4x-6; 5)y'=-11/(x-7)^2; 6)y'=-sin^2x-1/six