Which rule is used to differentiate a product of two functions, f(x)g(x)f(x)g(x)f(x)g(x)?
f′(x)g(x)−f(x)g′(x)f'(x)g(x) - f(x)g'(x)f′(x)g(x)−f(x)g′(x)
f′(x)g(x)+f(x)g′(x)f'(x)g(x) + f(x)g'(x)f′(x)g(x)+f(x)g′(x)
f′(x)g′(x)f'(x)g'(x)f′(x)g′(x)
Chain rule