Question
Function
Find the first partial derivative with respect to p
Find the first partial derivative with respect to s
∂p∂r=s1
Evaluate
r=p×s1
Multiply the terms
r=sp
Find the first partial derivative by treating the variable s as a constant and differentiating with respect to p
∂p∂r=∂p∂(sp)
Use differentiation rule ∂x∂(g(x)f(x))=(g(x))2∂x∂(f(x))×g(x)−f(x)×∂x∂(g(x))
∂p∂r=s2∂p∂(p)s−p×∂p∂(s)
Use ∂x∂xn=nxn−1 to find derivative
∂p∂r=s21×s−p×∂p∂(s)
Use ∂x∂(c)=0 to find derivative
∂p∂r=s21×s−p×0
Any expression multiplied by 1 remains the same
∂p∂r=s2s−p×0
Any expression multiplied by 0 equals 0
∂p∂r=s2s−0
Removing 0 doesn't change the value,so remove it from the expression
∂p∂r=s2s
Solution
More Steps

Evaluate
s2s
Use the product rule aman=an−m to simplify the expression
s2−11
Reduce the fraction
s1
∂p∂r=s1
Show Solution

Solve the equation
Solve for p
Solve for r
Solve for s
p=rs
Evaluate
r=p×s1
Multiply the terms
r=sp
Swap the sides of the equation
sp=r
Cross multiply
p=sr
Solution
p=rs
Show Solution
