Calculus 1 : Calculus

Study concepts, example questions & explanations for Calculus 1

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Example Questions

Example Question #29 : How To Find Area Of A Region

A curve is defined by the function:

Find the area between the curve and the -axis on the interval of  to .

Possible Answers:

Correct answer:

Explanation:

To find the area between the curve and the x-axis, we will need to integrate the curve with respect to x:

 from x = 0 to 1

Introducing are upper and lower bounds, we can find the area to be:

 

 

 

Example Question #2991 : Functions

Find the area under the curve  from  to , rounded to the nearest integer.

Possible Answers:

Correct answer:

Explanation:

Finding the area under the curve can be understood as taking the integral of the equation and it can be rewritten into the following: 

To solve:

1. Find the indefinite integral of the function.

2. Plug in the upper and lower limit values and take the difference of the two.

1. Using the power rule which states,

 to each term we find,

.

2.  , which is  after rounding.

Example Question #4021 : Calculus

Find the area under the curve  from  to , rounded to the nearest integer.

Possible Answers:

Correct answer:

Explanation:

Finding the area under the curve can be understood as taking the integral of the equation and it can be rewritten into the following:

 

To solve:

1. Find the indefinite integral of the function.

2. Plug in the upper and lower limit values and take the difference of the 2 values.

 

1. Using the power rule which states,

 to each term we find,

2. Plug in 3 and 0 for x and then take the difference.

  , which rounds up to .

Example Question #32 : How To Find Area Of A Region

Find the area under the curve  from  to , rounded to the nearest integer.

Possible Answers:

Correct answer:

Explanation:

Finding the area under the curve can be understood as taking the integral of the equation and it can be rewritten into the following:

To solve:

1. Find the indefinite integral of the function.

2. Plug in the upper and lower limit values and take the difference of the two values.

 

1. Using the power rule which states,

 to each term we find,

.

2. Plug in 4 and 1 for x and then take the difference.

The answer is 11 because 10.667 rounds up.

 

 

 

Example Question #31 : Area

Find the area of the curve  from  to  

Possible Answers:

Correct answer:

Explanation:

Written in words, solve:

To solve:

1. Find the indefinite integral of the function.

2. Plug in the upper and lower limit values and take the difference of the two values.

 

1. Using the power rule which states,

 to the term  and recalling the integral of  is  we find,

.

2. Plug in  and  for  and then take the difference.

 = 

note:

Example Question #32 : Area

Find the area under the curve  from  to  .

Possible Answers:

Correct answer:

Explanation:

Finding the area under the curve can be understood as taking the integral of the equation and it can be rewritten into the following:

To solve:

1. Find the indefinite integral of the function.

2. Plug in the upper and lower limit values and take the difference of the two values.

 

1. Recall that the integral of  is  and that the integral of  is itself, we find that,

.

2.  

note: 

 

Example Question #34 : How To Find Area Of A Region

Find the area under the curve  from  to  .

Possible Answers:

Correct answer:

Explanation:

Finding the area under the curve can be understood as taking the integral of the equation and it can be rewritten into the following:

To solve:

1. Find the indefinite integral of the function.

2. Plug in the upper and lower limit values and take the difference of the two values.

 

1. Using the power rule which states,

 to the term  and recalling the integral of  is  we find,

 

2. 

Example Question #111 : Regions

Find the area under the curve  from  to  .

Possible Answers:

Correct answer:

Explanation:

Finding the area under the curve can be understood as taking the integral of the equation and it can be rewritten into the following:

To solve:

1. Find the indefinite integral of the function

2. Plug in the upper and lower limit values and take the difference of the 2 values.

 

1. Using the power rule which states,

 to the term  and recalling the integral of  is  we find,

 .

2. 

Example Question #35 : How To Find Area Of A Region

Find the area under the curve  from  to .

Possible Answers:

Correct answer:

Explanation:

Finding the area under the curve can be understood as taking the integral of the equation and it can be rewritten into the following:

To solve:

1. Find the indefinite integral of the function.

2. Plug in the upper and lower limit values and take the difference of the two values.

 

1. Using the power rule which states,

 to each term we find,

.

2. 

Example Question #36 : How To Find Area Of A Region

Find the area of the region bounded by  and  on the interval .

Possible Answers:

Correct answer:

Explanation:

Finding the area of a region can be understood as taking the integral of the difference of the two equations and it can be rewritten into the following:

To determine which equation gets subtracted from, try drawing the graph or testing which function is larger at a point in the interval. The function that is larger will be on top, which in this case is . For example, at point ,  is  while is .

 

 

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