Find the Exact Value $\cos ^ { 2 } \frac { \pi } { 8 } - \sin ^ { 2 } \frac { \pi } { 8 }$

question 29

Short Answer

Find the exact value. $\cos ^ { 2 } \frac { \pi } { 8 } - \sin ^ { 2 } \frac { \pi } { 8 }$

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Definitions:

Compounded

Refers to the process where the value of an investment grows exponentially over time as earnings or interest are reinvested to generate additional earnings.

Dividend Yield

A ratio indicating the amount of dividends a company distributes annually in relation to its share price.

Constant Growth Model

A model that estimates the value of a dividend-paying stock by assuming constant growth in dividends at a consistent rate.

Gordon Model

A financial model used to determine the value of a stock by considering the current dividend, the expected growth rate of dividends, and the required rate of return.