Use the Product Rule to Multiply $\sqrt { \frac { x } { 7 } } \cdot \sqrt { \frac { y } { 3 } }$

question 19

Multiple Choice

Use the product rule to multiply. Assume all variables represent positive real numbers.
- $\sqrt { \frac { x } { 7 } } \cdot \sqrt { \frac { y } { 3 } }$

• A) \(\sqrt { \frac { 3 x } { 7 y } }\)
• B) \(\frac { x y } { 21 }\)
• C) \(\sqrt { \frac { x y } { 21 } }\)
• D) \(\sqrt { \frac { 3 x + 7 y } { 21 } }\)

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Definitions:

Superego

In psychoanalytic theory, the part of the personality that acts as a moral center, incorporating the values of society.

Superego

The part of a person's mind that acts as a self-critical conscience, reflecting social standards learned from parents and teachers.

Id

A term in psychoanalytic theory referring to the part of the unconscious personality which contains our primal, instinctive desires and drives.

Ego

A psychoanalytic term referring to the part of the mind that mediates between the conscious and the unconscious and is responsible for reality testing and a sense of personal identity.