Evaluate each of the followingcos 2 30-cos 2 45-cos 2 60-cos 2 90-

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Evaluate each...

Question

Evaluate each of the following

cos² 30° + cos² 45° + cos² 60° + cos² 90°

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Evaluate each of the following

$c o s^{2} 30^{o} + c o s^{2} 45^{o} + c o s^{2} 60^{o} + c o s^{2} 90^{o}$

{cos}^{2} 30^{\circ} + {cos}^{2} 45^{\circ} + {cos}^{2} 60^{\circ} + {cos}^{2} 90^{\circ}

{cos}^{2} 0^{\circ} + {cos}^{2} 30^{\circ} + {cos}^{2} 45^{\circ} + {cos}^{2} 60^{\circ} + {cos}^{2} 90^{\circ}

\frac{4}{\cot^{2} 30 °} + \frac{1}{\sin^{2} 60 °} - \cos^{2} 45 °

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