Derivative of the Product of Two Functions: Applying the Chain Rule

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In summary, a derivative is a mathematical concept that measures the rate of change of a function with respect to its input variable. The notation "a(t) = b(t)c(t)" is a way of writing a function, where "a" is the output variable and "t" is the input variable. The derivative of "a(t) = b(t)c(t)" can be found using the product rule, and it is important in many areas of science and mathematics. Yes, the derivative of "a(t) = b(t)c(t)" can be negative, indicating a decreasing rate of change for the function.
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harpf
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Homework Statement


take the derivative of a(t) = b(t)c(t)

Homework Equations


chain rule

The Attempt at a Solution


Apply the chain rule: a'(t) = c(t)b'(t) + b(t)c'(t)
Is this correct? Thank you.
 
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  • #2
harpf said:

Homework Statement


take the derivative of a(t) = b(t)c(t)

Homework Equations


chain rule

The Attempt at a Solution


Apply the chain rule: a'(t) = c(t)b'(t) + b(t)c'(t)
Is this correct? Thank you.

Yes, it's correct. But that's called the product rule, not the chain rule.
 
  • #3
Thanks. I appreciate your response.
 

FAQ: Derivative of the Product of Two Functions: Applying the Chain Rule

What is a derivative?

A derivative is a mathematical concept that measures the rate of change of a function with respect to its input variable. It essentially tells us how much a function is changing at a specific point.

What does the notation "a(t) = b(t)c(t)" mean?

The notation "a(t) = b(t)c(t)" is a way of writing a function, where "a" is the output variable and "t" is the input variable. The function is equal to the product of two other functions, "b(t)" and "c(t)".

How do you find the derivative of "a(t) = b(t)c(t)"?

The derivative of "a(t) = b(t)c(t)" can be found using the product rule, which states that the derivative of a product of two functions is equal to the first function times the derivative of the second function, plus the second function times the derivative of the first function. In this case, the derivative is given by a'(t) = b(t)c'(t) + c(t)b'(t).

What is the importance of finding the derivative of a function?

Finding the derivative of a function is important in many areas of science and mathematics. It helps us understand the rate of change of a physical phenomenon, such as the velocity of an object, and can also be used to find the maximum and minimum values of a function. Additionally, the derivative is a fundamental concept in calculus, which is essential for studying many scientific disciplines.

Can the derivative of "a(t) = b(t)c(t)" be negative?

Yes, the derivative of "a(t) = b(t)c(t)" can be negative. This means that the function is decreasing at that point, or that the rate of change is negative. This could represent a variety of physical phenomena, such as a decreasing temperature or a decreasing population size.

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