reduce the friction between its moving parts
in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.
welll its a very hard question but ill
first you take the 6 dollars and add 10 to it then add the 50 to that then multiply by 8 with xy and your answer will be
i think is g(1)=-1.
hope that i can