Find the Exact Value $\cos \left( 2 \tan ^ { - 1 } \frac { 5 } { 12 } \right)$

question 52

Multiple Choice

Find the exact value. $\cos \left( 2 \tan ^ { - 1 } \frac { 5 } { 12 } \right)$

• A) \(13 / 6\)
• B) \(5 / 6\)
• C) \(13 / 119\)
• D) \(169 / 119\)
• E) \(119 / 169\)

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Definitions:

Raw Materials

Raw materials are the unprocessed or minimally processed resources used to produce goods, forming the basic input in manufacturing processes.

Gross Method

Gross method is an accounting practice where purchases are recorded at full cost without accounting for any purchase discounts potentially available.

Net Method

An accounting approach that records transactions after deducting any discounts, rather than recording them at their gross amount and including the discounts as a separate item.

Purchase Discounts

Price reductions given by suppliers to buyers as an incentive for early payment of their purchase invoices.