# Physics Examples

Step 1

Step 1.1

Substitute for .

Step 1.2

Substitute for .

Step 2

Step 2.1

Simplify the numerator.

Step 2.1.1

Apply the product rule to .

Step 2.1.2

Raise to the power of .

Step 2.1.3

Apply the product rule to .

Step 2.2

Cancel the common factor of and .

Step 2.2.1

Factor out of .

Step 2.2.2

Cancel the common factors.

Step 2.2.2.1

Factor out of .

Step 2.2.2.2

Cancel the common factor.

Step 2.2.2.3

Rewrite the expression.

Step 2.3

Factor out of .

Step 2.4

Cross cancel units.

Step 2.5

Simplify the expression.

Step 2.5.1

Remove the canceled units.

Step 2.5.2

Combine fractions.

Step 2.5.3

Divide by .

Step 3

Round to significant figures.