All Calculus 1 Resources
Example Questions
Example Question #121 : How To Find Area Of A Region
Find the area under the curve between and .
In order to find the area underneath a curve for a specific range of values, we need to set up a definite integral expression. To do this, we plug our specific information into the following skeleton:
We plug in the equation of the curve in for , the smaller of our x-values for , and the larger of our x-values for . For this problem, our set-up looks like this:
Next, we integrate our expression, ignoring our and values for now. We get:
Now, to find the area under the part of the curve we're looking for, we plug our and values into our integrated expression and find the difference, using the following skeleton:
In this problem, this looks like:
Which plugged into our integrated expression is:
With our final answer being:
Example Question #122 : How To Find Area Of A Region
Find the area under the curve between and .
In order to find the area underneath a curve for a specific range of values, we need to set up a definite integral expression. To do this, we plug our specific information into the following skeleton:
We plug in the equation of the curve in for , the smaller of our x-values for , and the larger of our x-values for . For this problem, our set-up looks like this:
Next, we integrate our expression, ignoring our and values for now. We get:
Now, to find the area under the part of the curve we're looking for, we plug our and values into our integrated expression and find the difference, using the following skeleton:
In this problem, this looks like:
Which plugged into our integrated expression is:
With our final answer being:
Example Question #123 : How To Find Area Of A Region
Find the area under the curve between and .
In order to find the area underneath a curve for a specific range of values, we need to set up a definite integral expression. To do this, we plug our specific information into the following skeleton:
We plug in the equation of the curve in for , the smaller of our x-values for , and the larger of our x-values for . For this problem, our set-up looks like this:
Next, we integrate our expression, ignoring our and values for now. We get:
Now, to find the area under the part of the curve we're looking for, we plug our and values into our integrated expression and find the difference, using the following skeleton:
In this problem, this looks like:
Which plugged into our integrated expression is:
With our final answer being:
Example Question #201 : Regions
Find the area under the curve between and .
In order to find the area underneath a curve for a specific range of values, we need to set up a definite integral expression. To do this, we plug our specific information into the following skeleton:
We plug in the equation of the curve in for , the smaller of our x-values for , and the larger of our x-values for . For this problem, our set-up looks like this:
Next, we integrate our expression, ignoring our and values for now. We get:
Now, to find the area under the part of the curve we're looking for, we plug our and values into our integrated expression and find the difference, using the following skeleton:
In this problem, this looks like:
Which plugged into our integrated expression is:
With our final answer being:
Example Question #125 : How To Find Area Of A Region
Find the area under the curve between and .
In order to find the area underneath a curve for a specific range of values, we need to set up a definite integral expression. To do this, we plug our specific information into the following skeleton:
We plug in the equation of the curve in for , the smaller of our x-values for , and the larger of our x-values for . For this problem, our set-up looks like this:
Next, we integrate our expression, ignoring our and values for now. We get:
Now, to find the area under the part of the curve we're looking for, we plug our and values into our integrated expression and find the difference, using the following skeleton:
In this problem, this looks like:
Which plugged into our integrated expression is:
With our final answer being:
Example Question #122 : How To Find Area Of A Region
Find the area of the region bounded on top by and on bottom by from to
To find the area bounded by the two curves, we must integrate:
, where f(x) is the top function and g(x) is the bottom function.
Using the above formula, we get
The integration was perfomed using the following rule:
The definite integration was performed by taking the result of the integral and evaluating it at the upper limit, and then subtracting the evaluation at the lower limit.
Example Question #123 : How To Find Area Of A Region
Write the function describing the area below and above
To determine the function that describes the area between two functions, we must integrate over the difference between the upper and lower functions:
For ease, we can split the integral into three integrals:
For the first integral, we must make the following substitution:
Rewriting the integral and integrating, we get
which was found using the following rule:
The second integral is equal to
and was found using the following rule:
The third integral, found using the same rule as the first integral, is equal to
Combining the results - and adding all the constants of integration to make a single C - we get
.
Example Question #124 : Area
Find the area of the region bound by the lines , , the x-axis, and the function v(x)
Find the area of the region bound by the lines , , the x-axis, and the function v(x)
First, we need to set up our integral.
It should look like this:
Next, recall the rule for integrating polynomials: Increase each exponent by 1 and divide by that number:
Simplify this to get
Next, evaluate our integral by finding the difference between V(10) and V(5)
So our answer is 19939770
Example Question #121 : Area
Find the area below the function and above the function from x=0 to x=5.
To find the area between the curves, we must integrate the difference between the upper and lower function between the x values specified:
The integral was found using the following rule:
Evaluated between the x values, we get
Example Question #122 : Area
Find the area from x=0 to x=4, under the function of and above the function of .
To determine the area between the two functions, we take the integral of the difference between the upper and lower functions evaluated between the bounds stated:
The integration was performed using the following rule:
When we evaluate it definitely, we get
The result of the integration is -24, but the area itself is the magnitude of this:
.
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