Evaluate the following: sec16° tan28° - cot62° cosec74°

Sum

sec16° tan28° - cot62° cosec74°
= sec(90° - 74°)tan(90° - 62°) - cot62° cosec74°
= cosec74° cot62° - cot62° cosec74°
= 0

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Trigonometric Equation Problem and Solution

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