Use the Sum-To-Product Formulas to Rewrite the Sum or Difference $\cos \frac { 11 \theta } { 2 } \cos \frac { 5 \theta } { 2 }$

question 29

Multiple Choice

Use the sum-to-product formulas to rewrite the sum or difference as a product. ​
Cos 3θ + cos 8θ
​

• A)​ \(\cos \frac { 11 \theta } { 2 } \cos \frac { 5 \theta } { 2 }\)
• B)​ \(2 \cos \frac { 11 \theta } { 2 } \sin - \frac { 5 \theta } { 2 }\)
• C)​ \(2 \sin \frac { 11 \theta } { 2 } \sin \frac { 5 \theta } { 2 }\)
• D)​ \(\cos - \frac { 11 \theta } { 2 } \cos \frac { 5 \theta } { 2 }\)
• E) \(2 \cos \frac { 11 \theta } { 2 } \cos - \frac { 5 \theta } { 2 }\)

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Definitions:

Intrinsic Value

The inherent or true value of an asset, investment, or company, based on underlying perception of its actual value including all aspects of the business, in terms of both tangible and intangible factors.

Option Value

The premium or price for holding an option, representing the potential benefit of choosing one course of action over another.

Convertible Bond

An investment vehicle that offers the ability to be exchanged for a set portion of the company's shares at predefined periods within its term, usually upon the bondholder's initiative.

Call's Value

The intrinsic value of a call option, reflecting the difference between the underlying asset's price and the strike price of the option, if positive.