Mathegoras

Trigonometry › Trigonometric identities › Complementary angles

Trig expression with complementary angles

High school · ●○○○○ 10 pts

Without using trigonometric tables, evaluate cos⁡226∘+cos⁡64∘sin⁡26∘+tan⁡36∘cot⁡54∘\cos^2 26^\circ + \cos 64^\circ \sin 26^\circ + \dfrac{\tan 36^\circ}{\cot 54^\circ}.

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Pythagorean identity