Calculus Examples

Find dy/dx 1/x-1/y=1
Step 1
Differentiate both sides of the equation.
Step 2
Differentiate the left side of the equation.
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Step 2.1
By the Sum Rule, the derivative of with respect to is .
Step 2.2
Evaluate .
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Step 2.2.1
Rewrite as .
Step 2.2.2
Differentiate using the Power Rule which states that is where .
Step 2.3
Evaluate .
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Step 2.3.1
Differentiate using the Product Rule which states that is where and .
Step 2.3.2
Differentiate using the Quotient Rule which states that is where and .
Step 2.3.3
Since is constant with respect to , the derivative of with respect to is .
Step 2.3.4
Rewrite as .
Step 2.3.5
Since is constant with respect to , the derivative of with respect to is .
Step 2.3.6
Multiply by .
Step 2.3.7
Multiply by .
Step 2.3.8
Subtract from .
Step 2.3.9
Move the negative in front of the fraction.
Step 2.3.10
Multiply by .
Step 2.3.11
Multiply by .
Step 2.3.12
Multiply by .
Step 2.3.13
Add and .
Step 2.4
Simplify.
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Step 2.4.1
Rewrite the expression using the negative exponent rule .
Step 2.4.2
Reorder terms.
Step 3
Since is constant with respect to , the derivative of with respect to is .
Step 4
Reform the equation by setting the left side equal to the right side.
Step 5
Solve for .
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Step 5.1
Add to both sides of the equation.
Step 5.2
Multiply both sides by .
Step 5.3
Simplify.
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Step 5.3.1
Simplify the left side.
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Step 5.3.1.1
Cancel the common factor of .
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Step 5.3.1.1.1
Cancel the common factor.
Step 5.3.1.1.2
Rewrite the expression.
Step 5.3.2
Simplify the right side.
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Step 5.3.2.1
Combine and .
Step 6
Replace with .