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Use the chain rule: f'(x) = v(du/dx) +u(dv/dx).

Let u = 2x, du/dx = 2, v = lnx, dv/dx = 1/x

Using this information: f'(x) = 2lnx + 2x/x

This simplifies to f'(x...

V=IR, where V is voltage (volts), I is current (amps) and R is resistance (ohms). Since V and R are known, I needs to be found. Rearranging the equation gives: I=V/R. Inputting the value...

First factorise the equation into 2 sets of brackets: You can do this by looking at the constant in the quadratic, 8. Try and find 2 numbers that multiply together to make 8 (such as 4 and 2), and that...

Listening & Speaking: get involved as much as you can with your class-mates. Learning a language by using it everyday is the quickest way to become fluent in it.

Reading also helps a ...

1) Listen to music or watch movies, either original Italian movies or English movies dubbed in Italian to get used to how people speak, how they pronounce word and the intonation they use to change the...