their derivative vs their derivatives

Both phrases are correct, but they are used in different contexts. 'Their derivative' is used when referring to a single derivative belonging to a group or set, while 'their derivatives' is used when referring to multiple derivatives belonging to the same group or set.

Last updated: March 29, 2024

their derivative

This phrase is correct and commonly used when referring to a single derivative belonging to a group or set.

This phrase is used when talking about a single derivative that belongs to a specific group or set. It indicates possession or association.

Examples:

Each function has its own derivative. Their derivative is calculated using the chain rule.

Alternatives:

the derivative belonging to them
the derivative of theirs

their derivatives

This phrase is correct and commonly used when referring to multiple derivatives belonging to the same group or set.

This phrase is used when talking about multiple derivatives that belong to a specific group or set. It indicates possession or association.

Examples:

The functions are related, and their derivatives exhibit similar behavior.
The students compared their derivatives to check for errors.

Alternatives:

the derivatives belonging to them
the derivatives of theirs

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their derivative vs their derivatives