Question
Function
Find the first partial derivative with respect to w
Find the first partial derivative with respect to k
∂w∂v=k1
Simplify
v=kw
Find the first partial derivative by treating the variable k as a constant and differentiating with respect to w
∂w∂v=∂w∂(kw)
Use differentiation rule ∂x∂(g(x)f(x))=(g(x))2∂x∂(f(x))×g(x)−f(x)×∂x∂(g(x))
∂w∂v=k2∂w∂(w)k−w×∂w∂(k)
Use ∂x∂xn=nxn−1 to find derivative
∂w∂v=k21×k−w×∂w∂(k)
Use ∂x∂(c)=0 to find derivative
∂w∂v=k21×k−w×0
Any expression multiplied by 1 remains the same
∂w∂v=k2k−w×0
Any expression multiplied by 0 equals 0
∂w∂v=k2k−0
Removing 0 doesn't change the value,so remove it from the expression
∂w∂v=k2k
Solution
More Steps

Evaluate
k2k
Use the product rule aman=an−m to simplify the expression
k2−11
Reduce the fraction
k1
∂w∂v=k1
Show Solution

Solve the equation
Solve for k
Solve for w
k=vw
Evaluate
v=kw
Swap the sides of the equation
kw=v
Cross multiply
w=kv
Simplify the equation
w=vk
Swap the sides of the equation
vk=w
Divide both sides
vvk=vw
Solution
k=vw
Show Solution
