Calculus Examples

Solve the Differential Equation (dy)/(dx)=((2-y)^2)/(2 square root of 1+x)
Step 1
Separate the variables.
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Step 1.1
Multiply both sides by .
Step 1.2
Simplify.
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Step 1.2.1
Combine.
Step 1.2.2
Cancel the common factor of .
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Step 1.2.2.1
Cancel the common factor.
Step 1.2.2.2
Rewrite the expression.
Step 1.2.3
Multiply by .
Step 1.2.4
Combine and simplify the denominator.
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Step 1.2.4.1
Multiply by .
Step 1.2.4.2
Move .
Step 1.2.4.3
Raise to the power of .
Step 1.2.4.4
Raise to the power of .
Step 1.2.4.5
Use the power rule to combine exponents.
Step 1.2.4.6
Add and .
Step 1.2.4.7
Rewrite as .
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Step 1.2.4.7.1
Use to rewrite as .
Step 1.2.4.7.2
Apply the power rule and multiply exponents, .
Step 1.2.4.7.3
Combine and .
Step 1.2.4.7.4
Cancel the common factor of .
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Step 1.2.4.7.4.1
Cancel the common factor.
Step 1.2.4.7.4.2
Rewrite the expression.
Step 1.2.4.7.5
Simplify.
Step 1.3
Rewrite the equation.
Step 2
Integrate both sides.
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Step 2.1
Set up an integral on each side.
Step 2.2
Integrate the left side.
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Step 2.2.1
Let . Then , so . Rewrite using and .
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Step 2.2.1.1
Let . Find .
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Step 2.2.1.1.1
Rewrite.
Step 2.2.1.1.2
Divide by .
Step 2.2.1.2
Rewrite the problem using and .
Step 2.2.2
Move the negative in front of the fraction.
Step 2.2.3
Since is constant with respect to , move out of the integral.
Step 2.2.4
Apply basic rules of exponents.
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Step 2.2.4.1
Move out of the denominator by raising it to the power.
Step 2.2.4.2
Multiply the exponents in .
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Step 2.2.4.2.1
Apply the power rule and multiply exponents, .
Step 2.2.4.2.2
Multiply by .
Step 2.2.5
By the Power Rule, the integral of with respect to is .
Step 2.2.6
Simplify.
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Step 2.2.6.1
Rewrite as .
Step 2.2.6.2
Simplify.
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Step 2.2.6.2.1
Multiply by .
Step 2.2.6.2.2
Multiply by .
Step 2.2.7
Replace all occurrences of with .
Step 2.3
Integrate the right side.
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Step 2.3.1
Since is constant with respect to , move out of the integral.
Step 2.3.2
Let . Then . Rewrite using and .
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Step 2.3.2.1
Let . Find .
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Step 2.3.2.1.1
Differentiate .
Step 2.3.2.1.2
By the Sum Rule, the derivative of with respect to is .
Step 2.3.2.1.3
Since is constant with respect to , the derivative of with respect to is .
Step 2.3.2.1.4
Differentiate using the Power Rule which states that is where .
Step 2.3.2.1.5
Add and .
Step 2.3.2.2
Rewrite the problem using and .
Step 2.3.3
Simplify the expression.
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Step 2.3.3.1
Use to rewrite as .
Step 2.3.3.2
Simplify.
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Step 2.3.3.2.1
Move to the denominator using the negative exponent rule .
Step 2.3.3.2.2
Multiply by by adding the exponents.
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Step 2.3.3.2.2.1
Multiply by .
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Step 2.3.3.2.2.1.1
Raise to the power of .
Step 2.3.3.2.2.1.2
Use the power rule to combine exponents.
Step 2.3.3.2.2.2
Write as a fraction with a common denominator.
Step 2.3.3.2.2.3
Combine the numerators over the common denominator.
Step 2.3.3.2.2.4
Subtract from .
Step 2.3.3.3
Apply basic rules of exponents.
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Step 2.3.3.3.1
Move out of the denominator by raising it to the power.
Step 2.3.3.3.2
Multiply the exponents in .
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Step 2.3.3.3.2.1
Apply the power rule and multiply exponents, .
Step 2.3.3.3.2.2
Combine and .
Step 2.3.3.3.2.3
Move the negative in front of the fraction.
Step 2.3.4
By the Power Rule, the integral of with respect to is .
Step 2.3.5
Simplify.
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Step 2.3.5.1
Rewrite as .
Step 2.3.5.2
Simplify.
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Step 2.3.5.2.1
Combine and .
Step 2.3.5.2.2
Cancel the common factor of .
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Step 2.3.5.2.2.1
Cancel the common factor.
Step 2.3.5.2.2.2
Rewrite the expression.
Step 2.3.5.2.3
Multiply by .
Step 2.3.6
Replace all occurrences of with .
Step 2.4
Group the constant of integration on the right side as .
Step 3
Solve for .
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Step 3.1
Find the LCD of the terms in the equation.
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Step 3.1.1
Finding the LCD of a list of values is the same as finding the LCM of the denominators of those values.
Step 3.1.2
Remove parentheses.
Step 3.1.3
The LCM of one and any expression is the expression.
Step 3.2
Multiply each term in by to eliminate the fractions.
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Step 3.2.1
Multiply each term in by .
Step 3.2.2
Simplify the left side.
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Step 3.2.2.1
Cancel the common factor of .
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Step 3.2.2.1.1
Cancel the common factor.
Step 3.2.2.1.2
Rewrite the expression.
Step 3.2.3
Simplify the right side.
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Step 3.2.3.1
Simplify each term.
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Step 3.2.3.1.1
Apply the distributive property.
Step 3.2.3.1.2
Move to the left of .
Step 3.2.3.1.3
Rewrite using the commutative property of multiplication.
Step 3.2.3.1.4
Apply the distributive property.
Step 3.2.3.1.5
Move to the left of .
Step 3.2.3.1.6
Rewrite using the commutative property of multiplication.
Step 3.2.3.2
Reorder factors in .
Step 3.3
Solve the equation.
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Step 3.3.1
Rewrite the equation as .
Step 3.3.2
Move all terms not containing to the right side of the equation.
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Step 3.3.2.1
Subtract from both sides of the equation.
Step 3.3.2.2
Subtract from both sides of the equation.
Step 3.3.3
Factor out of .
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Step 3.3.3.1
Factor out of .
Step 3.3.3.2
Factor out of .
Step 3.3.3.3
Factor out of .
Step 3.3.4
Rewrite as .
Step 3.3.5
Divide each term in by and simplify.
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Step 3.3.5.1
Divide each term in by .
Step 3.3.5.2
Simplify the left side.
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Step 3.3.5.2.1
Divide by .
Step 3.3.5.3
Simplify the right side.
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Step 3.3.5.3.1
Simplify each term.
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Step 3.3.5.3.1.1
Move the negative in front of the fraction.
Step 3.3.5.3.1.2
Move the negative in front of the fraction.
Step 3.3.5.3.2
Combine the numerators over the common denominator.
Step 4
Simplify the constant of integration.