Partial Derivatives and Simplification

The video tutorial explains how to determine partial derivatives of a function F(x, y). It begins by setting up the function and rewriting it using an irrational exponent. The tutorial then demonstrates how to find the partial derivative with respect to X by treating Y as a constant, using the power rule and chain rule. The process involves simplifying the expression and factoring. Next, the tutorial covers finding the partial derivative with respect to Y by treating X as a constant, again using similar rules and simplification techniques. The video concludes with a simplified expression for each partial derivative.

What is the first step in finding the partial derivative of a function with respect to a variable?

• Apply the chain rule directly.

• Differentiate the function with respect to the variable.

• Rewrite the function using irrational exponents.

• Treat all variables as constants.

When finding the partial derivative with respect to X, what is treated as a constant?

• Both X and Y

• Neither X nor Y

• Y

• X

Which rule is used in conjunction with the power rule to find the partial derivative?

• Sum rule

• Quotient rule

• Chain rule

• Product rule

Tags

CCSS.7.EE.A.1

What is the greatest common factor used in simplifying the expression for the partial derivative with respect to X?

• 4X

• 2X

• 8X

• 5X

In the simplification process, what is the equivalent of the positive 1/2 exponent?

• Cube root

• No root

• Square root

• Fourth root

When finding the partial derivative with respect to Y, what is treated as a constant?

• X

• Y

• Both X and Y

• Neither X nor Y

Tags

CCSS.7.EE.A.1

What is the derivative of 5y^3 with respect to Y?

• 0

• 3y^2

• 5y^2

• 15y^2

Tags

CCSS.7.EE.A.1

What is the greatest common factor used in simplifying the expression for the partial derivative with respect to Y?

• 2y^2

• 6y^2

• 3y^2

• 5y^2

What is the final form of the partial derivative with respect to Y expressed as?

• 5y^2 * (2x^2 - 5) / square root of (2x^4 - 5y^3 + 2x^2y^3)

• 10y^2 * (2x^2 - 5) / square root of (2x^4 - 5y^3 + 2x^2y^3)

• 15y^2 * (2x^2 - 5) / square root of (2x^4 - 5y^3 + 2x^2y^3)

• 20y^2 * (2x^2 - 5) / square root of (2x^4 - 5y^3 + 2x^2y^3)

What is the purpose of using the chain rule in finding partial derivatives?

• To simplify the expression

• To rewrite the function

• To find the greatest common factor

• To differentiate composite functions