Exercise
$\frac{d}{dx}\left(\frac{\sin\left(2x\right)}{\sin\left(4x\right)}\right)$
Step-by-step Solution
Learn how to solve quotient rule of differentiation problems step by step online. Find the derivative d/dx(sin(2x)/sin(4x)). Apply the quotient rule for differentiation, which states that if f(x) and g(x) are functions and h(x) is the function defined by {\displaystyle h(x) = \frac{f(x)}{g(x)}}, where {g(x) \neq 0}, then {\displaystyle h'(x) = \frac{f'(x) \cdot g(x) - g'(x) \cdot f(x)}{g(x)^2}}. The derivative of the sine of a function is equal to the cosine of that function times the derivative of that function, in other words, if {f(x) = \sin(x)}, then {f'(x) = \cos(x)\cdot D_x(x)}. The derivative of the sine of a function is equal to the cosine of that function times the derivative of that function, in other words, if {f(x) = \sin(x)}, then {f'(x) = \cos(x)\cdot D_x(x)}. The derivative of the linear function times a constant, is equal to the constant.
Find the derivative d/dx(sin(2x)/sin(4x))
Final answer to the exercise
$\frac{2\cos\left(2x\right)\sin\left(4x\right)-4\sin\left(2x\right)\cos\left(4x\right)}{\sin\left(4x\right)^2}$