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Trigonometric identities with complementary angles

High school · ●●○○○ 20 pts

Evaluate (cos⁡225∘+cos⁡265∘)+csc⁡θsec⁡(90∘−θ)−cot⁡θtan⁡(90∘−θ)(\cos^2 25^\circ + \cos^2 65^\circ) + \csc\theta \sec(90^\circ - \theta) - \cot\theta \tan(90^\circ - \theta).

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Pythagorean identity