Question
Function
Find the first partial derivative with respect to t
Find the first partial derivative with respect to r
∂t∂p=r2
Evaluate
p=2×rt
Multiply the terms
p=r2t
Find the first partial derivative by treating the variable r as a constant and differentiating with respect to t
∂t∂p=∂t∂(r2t)
Use differentiation rule ∂x∂(g(x)f(x))=(g(x))2∂x∂(f(x))×g(x)−f(x)×∂x∂(g(x))
∂t∂p=r2∂t∂(2t)r−2t×∂t∂(r)
Evaluate
More Steps

Evaluate
∂t∂(2t)
Use differentiation rule ∂x∂(cf(x))=c×∂x∂(f(x))
2×∂t∂(t)
Use ∂x∂xn=nxn−1 to find derivative
2×1
Multiply the terms
2
∂t∂p=r22r−2t×∂t∂(r)
Use ∂x∂(c)=0 to find derivative
∂t∂p=r22r−2t×0
Any expression multiplied by 0 equals 0
∂t∂p=r22r−0
Removing 0 doesn't change the value,so remove it from the expression
∂t∂p=r22r
Solution
More Steps

Evaluate
r22r
Use the product rule aman=an−m to simplify the expression
r2−12
Reduce the fraction
r2
∂t∂p=r2
Show Solution

Solve the equation
Solve for p
Solve for r
Solve for t
p=r2t
Evaluate
p=2×rt
Solution
p=r2t
Show Solution
