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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Arranged Marriages

Marriages where the spouses are selected by a third party rather than by each other, commonly practiced in certain cultures and communities.

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The child of one's aunt or uncle, sharing a set of grandparents.

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