Use a Trigonometric Substitution to Evaluate the Integral $$\int \frac { d x } { x \left( 1 + 25 \ln ^ { 2 } x \right) }$$

question 350

Multiple Choice

Use a trigonometric substitution to evaluate the integral.
- $$\int \frac { d x } { x \left( 1 + 25 \ln ^ { 2 } x \right) }$$

• A) \(\frac { 1 } { 5 x } \tan ^ { - 1 } ( 5 \ln x ) + C\)
• B) \(\frac { 1 } { 5 } \tan ^ { - 1 } \left( 25 \ln ^ { 2 } x \right) + C\)
• C) \(\frac { 1 } { 50 } \ln \left( 1 + 25 \ln ^ { 2 } x \right) + C\)
• D) \(\frac { 1 } { 5 } \tan ^ { - 1 } ( 5 \ln x ) + C\)

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Definitions:

Lower Of Cost

An accounting principle requiring that inventory is recorded at the lower of its historical cost or current market value.

Market Value

The prevailing market rate at which a commodity or service is traded.

Retail Inventory Method

An accounting technique used to estimate inventory value by converting retail prices to cost prices.

Cost To Retail Ratio

A method to estimate the value of ending inventory and cost of goods sold based on the ratio of cost to the retail price of goods.