Find the Exact Value $\left( \cos \frac { 3 \pi } { 8 } + \cos \frac { \pi } { 8 } \right) ^ { 2 }$

question 49

Multiple Choice

Find the exact value. $\left( \cos \frac { 3 \pi } { 8 } + \cos \frac { \pi } { 8 } \right) ^ { 2 }$

• A) \(\sqrt { 2 }\)
• B) \(1 + \frac { \sqrt { 2 } } { 2 }\)
• C) \(\sqrt { \frac { 2 - \sqrt { 2 } } { 2 } }\)
• D) \(\sqrt { 2 + \sqrt { 2 } }\)
• E) \(2 - \sqrt { 2 }\)

Appreciate the significance of genetic diversity and allele frequency changes in the evolution of populations.

Recognize the importance of taxonomy and phylogeny in understanding evolutionary relationships.

Explain the concept of adaptive radiation and its significance in the diversification of species.

Understand the process of cladogenesis and how cladograms are constructed to represent evolutionary relationships.

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