# 30 Lecture

## First Fundamental Theorem of Calculus

The First Fundamental Theorem of Calculus is a fundamental concept in calculus that establishes a connection between integration and differentiation. It relates the concept of finding the area under a curve to finding the antiderivative of a fun

## Important Mcq's Midterm & Finalterm Prepration Past papers included

What does the First Fundamental Theorem of Calculus establish?

a. A connection between integration and differentiation

b. A connection between differentiation and limits

c. A connection between limits and series

d. None of the above

Answer: a. A connection between integration and differentiation

What is the formula for the First Fundamental Theorem of Calculus?

a. ?a^b f(x) dx = F(b) - F(a)

b. F(x) = ?a^x f(t) dt

c. F(x) = f(x)

d. None of the above

Answer: b. F(x) = ?a^x f(t) dt

What is the significance of the First Fundamental Theorem of Calculus?

a. It provides a powerful tool for solving problems that involve finding the area under a curve

b. It allows us to calculate the derivative of the definite integral of a function

c. It enables us to find the slope of a tangent line to a curve at any point

d. All of the above

Answer: d. All of the above

What is the relationship between the derivative of the definite integral and the original function?

a. They are equal

b. They are opposite in sign

c. They are proportional

d. None of the above

What is the condition for the First Fundamental Theorem of Calculus to hold?

a. The function must be continuous on the interval [a, b]

b. The function must be differentiable on the interval [a, b]

c. The function must be both continuous and differentiable on the interval [a, b]

d. None of the above

Answer: a. The function must be continuous on the interval [a, b]

What is the role of the limit concept in the proof of the First Fundamental Theorem of Calculus?

a. To define the definite integral

b. To show that the Riemann sum approaches the definite integral as the number of subintervals increases

c. To calculate the derivative of the definite integral

d. None of the above

Answer: b. To show that the Riemann sum approaches the definite integral as the number of subintervals increases

What is the application of the First Fundamental Theorem of Calculus in physics?

a. To calculate the total distance traveled by an object

b. To calculate the present value of future cash flows

c. To find the maximum or minimum values of a function

d. None of the above

Answer: a. To calculate the total distance traveled by an object

What is the application of the First Fundamental Theorem of Calculus in economics?

a. To calculate the total revenue of a company

b. To calculate the present value of future cash flows

c. To find the marginal cost or revenue of a product

d. None of the above

Answer: b. To calculate the present value of future cash flows

Is the First Fundamental Theorem of Calculus applicable only to continuous functions?

a. Yes

b. No

c. Sometimes

d. It depends on the interval

What is the difference between the First and Second Fundamental Theorem of Calculus?

a. The First Fundamental Theorem relates integration and differentiation, while the Second Fundamental Theorem relates definite and indefinite integrals

b. The First Fundamental Theorem relates differentiation and limits, while the Second Fundamental Theorem relates integration and series

c. The First Fundamental Theorem relates integration and limits, while the Second Fundamental Theorem relates differentiation and series

d. None of the above

## Subjective Short Notes Midterm & Finalterm Prepration Past papers included

What is the First Fundamental Theorem of Calculus?

Answer: The First Fundamental Theorem of Calculus establishes a connection between integration and differentiation. It states that if f(x) is a continuous function on an interval [a, b], then the definite integral of f(x) from a to x is differentiable on the interval (a, b), and its derivative is f(x) evaluated at x.

What is the significance of the First Fundamental Theorem of Calculus?

Answer: The theorem provides a powerful tool for solving problems that involve finding the area under a curve. It allows us to calculate the derivative of the definite integral of a function, which in turn enables us to find the slope of a tangent line to a curve at any point.

What does the derivative of the definite integral of a function represent?

Answer: The derivative of the definite integral of a function represents the slope of the tangent line to the curve at any point.

What is the formula for the First Fundamental Theorem of Calculus?

Answer: If f(x) is a continuous function on [a, b], then the function g(x) defined by g(x) = ?a^x f(t) dt is differentiable on (a, b), and g'(x) = f(x) for all x in (a, b).

What is the relationship between integration and differentiation according to the First Fundamental Theorem of Calculus?

Answer: The First Fundamental Theorem of Calculus establishes a relationship between integration and differentiation. It states that the derivative of the definite integral of a function is equal to the original function.

What is the role of the limit concept in the proof of the First Fundamental Theorem of Calculus?

Answer: The proof of the theorem is based on the definition of the definite integral as a limit of Riemann sums. It involves showing that as the number of subintervals in the Riemann sum increases, the sum approaches the definite integral of the function.

What is the application of the First Fundamental Theorem of Calculus in physics?

Answer: The theorem can be used to calculate the total distance traveled by an object whose velocity is given by a function. The definite integral of the velocity function over a given time interval gives the total displacement of the object over that interval, while the derivative of the definite integral gives the instantaneous velocity at any point in time.

What is the application of the First Fundamental Theorem of Calculus in economics?

Answer: The theorem can be used to calculate the present value of future cash flows. It allows us to calculate the integral of the cash flows over a given period, and the derivative of the integral gives the present value of the cash flows at any point in time.

Is the First Fundamental Theorem of Calculus applicable only to continuous functions?

Answer: Yes, the theorem is applicable only to continuous functions.

What is the difference between the First and Second Fundamental Theorem of Calculus?

Answer: The First Fundamental Theorem of Calculus establishes a connection between integration and differentiation, while the Second Fundamental Theorem of Calculus establishes a connection between definite integrals and indefinite integrals. The Second Fundamental Theorem states that if f(x) is a continuous function on an interval [a, b], then the definite integral of f(x) from a to b is equal to the difference between the antiderivative of f(x) evaluated at b and the antiderivative of f(x) evaluated at a.

### First Fundamental Theorem of Calculus

The First Fundamental Theorem of Calculus is a fundamental concept in calculus that establishes a connection between integration and differentiation. It relates the concept of finding the area under a curve to finding the antiderivative of a function. The theorem is based on the fundamental notion of the limit and is one of the most important theorems in calculus. The theorem states that if f(x) is a continuous function on an interval [a, b], then the definite integral of f(x) from a to x is differentiable on the interval (a, b), and its derivative is f(x) evaluated at x. In other words, the derivative of the definite integral of f(x) from a to x with respect to x is equal to f(x).

### Mathematically, the First Fundamental Theorem of Calculus can be stated as follows:

If f(x) is a continuous function on [a, b], then the function g(x) defined by g(x) = ?a^x f(t) dt is differentiable on (a, b), and g'(x) = f(x) for all x in (a, b). This theorem has a significant impact on the development of calculus, as it provides a powerful tool for solving problems that involve finding the area under a curve. The theorem enables us to calculate the derivative of the definite integral of a function, which in turn allows us to find the slope of a tangent line to a curve at any point. The First Fundamental Theorem of Calculus is often used in applications where we need to calculate the area under a curve. For example, it can be used to calculate the total distance traveled by an object whose velocity is given by a function. The definite integral of the velocity function over a given time interval gives the total displacement of the object over that interval, while the derivative of the definite integral gives the instantaneous velocity at any point in time. Another application of the theorem is in economics, where it is used to calculate the present value of future cash flows. The theorem allows us to calculate the integral of the cash flows over a given period, and the derivative of the integral gives the present value of the cash flows at any point in time. The proof of the First Fundamental Theorem of Calculus is based on the definition of the definite integral as a limit of Riemann sums. It involves showing that as the number of subintervals in the Riemann sum increases, the sum approaches the definite integral of the function. By using the limit definition of the derivative, we can then show that the derivative of the definite integral is equal to the function itself. In summary, the First Fundamental Theorem of Calculus is a powerful tool in calculus that establishes a connection between integration and differentiation. It allows us to calculate the derivative of the definite integral of a function, which in turn enables us to find the slope of a tangent line to a curve at any point. The theorem has many applications in science, engineering, economics, and other fields, making it one of the most important concepts in calculus.