To find the first partial derivatives of the function f(x, y) = x7y, we need to differentiate the function with respect to each variable separately while treating the other variable as a constant.
Partial Derivative with respect to x
The first step is to calculate the partial derivative of f with respect to x, denoted as ∂f/∂x. When differentiating x7y with respect to x, we treat y as a constant:
∂f/∂x = 7x6y
Partial Derivative with respect to y
Next, we will find the partial derivative of f with respect to y, denoted as ∂f/∂y. Here, we treat x as a constant:
∂f/∂y = x7
Summary
In summary, the first partial derivatives of the function f(x, y) = x7y are:
- ∂f/∂x = 7x6y
- ∂f/∂y = x7