Calculus Examples

Graph x square root of 2-x^2
Step 1
Find the domain for so that a list of values can be picked to find a list of points, which will help graphing the radical.
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Step 1.1
Set the radicand in greater than or equal to to find where the expression is defined.
Step 1.2
Solve for .
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Step 1.2.1
Subtract from both sides of the inequality.
Step 1.2.2
Divide each term in by and simplify.
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Step 1.2.2.1
Divide each term in by . When multiplying or dividing both sides of an inequality by a negative value, flip the direction of the inequality sign.
Step 1.2.2.2
Simplify the left side.
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Step 1.2.2.2.1
Dividing two negative values results in a positive value.
Step 1.2.2.2.2
Divide by .
Step 1.2.2.3
Simplify the right side.
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Step 1.2.2.3.1
Divide by .
Step 1.2.3
Take the specified root of both sides of the inequality to eliminate the exponent on the left side.
Step 1.2.4
Simplify the left side.
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Step 1.2.4.1
Pull terms out from under the radical.
Step 1.2.5
Write as a piecewise.
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Step 1.2.5.1
To find the interval for the first piece, find where the inside of the absolute value is non-negative.
Step 1.2.5.2
In the piece where is non-negative, remove the absolute value.
Step 1.2.5.3
To find the interval for the second piece, find where the inside of the absolute value is negative.
Step 1.2.5.4
In the piece where is negative, remove the absolute value and multiply by .
Step 1.2.5.5
Write as a piecewise.
Step 1.2.6
Find the intersection of and .
Step 1.2.7
Solve when .
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Step 1.2.7.1
Divide each term in by and simplify.
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Step 1.2.7.1.1
Divide each term in by . When multiplying or dividing both sides of an inequality by a negative value, flip the direction of the inequality sign.
Step 1.2.7.1.2
Simplify the left side.
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Step 1.2.7.1.2.1
Dividing two negative values results in a positive value.
Step 1.2.7.1.2.2
Divide by .
Step 1.2.7.1.3
Simplify the right side.
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Step 1.2.7.1.3.1
Move the negative one from the denominator of .
Step 1.2.7.1.3.2
Rewrite as .
Step 1.2.7.2
Find the intersection of and .
Step 1.2.8
Find the union of the solutions.
Step 1.3
The domain is all values of that make the expression defined.
Interval Notation:
Set-Builder Notation:
Interval Notation:
Set-Builder Notation:
Step 2
To find the end points, substitute the bounds of the values from the domain into .
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Step 2.1
Replace the variable with in the expression.
Step 2.2
Simplify the result.
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Step 2.2.1
Apply the product rule to .
Step 2.2.2
Multiply by by adding the exponents.
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Step 2.2.2.1
Move .
Step 2.2.2.2
Multiply by .
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Step 2.2.2.2.1
Raise to the power of .
Step 2.2.2.2.2
Use the power rule to combine exponents.
Step 2.2.2.3
Add and .
Step 2.2.3
Raise to the power of .
Step 2.2.4
Rewrite as .
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Step 2.2.4.1
Use to rewrite as .
Step 2.2.4.2
Apply the power rule and multiply exponents, .
Step 2.2.4.3
Combine and .
Step 2.2.4.4
Cancel the common factor of .
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Step 2.2.4.4.1
Cancel the common factor.
Step 2.2.4.4.2
Rewrite the expression.
Step 2.2.4.5
Evaluate the exponent.
Step 2.2.5
Simplify the expression.
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Step 2.2.5.1
Multiply by .
Step 2.2.5.2
Subtract from .
Step 2.2.5.3
Rewrite as .
Step 2.2.5.4
Pull terms out from under the radical, assuming positive real numbers.
Step 2.2.6
Multiply .
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Step 2.2.6.1
Multiply by .
Step 2.2.6.2
Multiply by .
Step 2.2.7
The final answer is .
Step 2.3
Replace the variable with in the expression.
Step 2.4
Simplify the result.
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Step 2.4.1
Combine using the product rule for radicals.
Step 2.4.2
Rewrite as .
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Step 2.4.2.1
Use to rewrite as .
Step 2.4.2.2
Apply the power rule and multiply exponents, .
Step 2.4.2.3
Combine and .
Step 2.4.2.4
Cancel the common factor of .
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Step 2.4.2.4.1
Cancel the common factor.
Step 2.4.2.4.2
Rewrite the expression.
Step 2.4.2.5
Evaluate the exponent.
Step 2.4.3
Simplify the expression.
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Step 2.4.3.1
Multiply by .
Step 2.4.3.2
Subtract from .
Step 2.4.3.3
Multiply by .
Step 2.4.3.4
Rewrite as .
Step 2.4.3.5
Pull terms out from under the radical, assuming positive real numbers.
Step 2.4.4
The final answer is .
Step 3
The end points are .
Step 4
The square root can be graphed using the points around the vertex
Step 5