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# Prove the following identity. Explain your thought process. Please show full steps and solutions. Thanks! 1) cot22

^{}x = (cos^{}x) / (1 - cos^{2}x)

2) Solve the following trigonometric equation for 0 ≤ x ≤ 2π. Explain your process.

cos^{2}x - 1 = 0

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Math, Trigonometry

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