Let Us Show That–(i)sin66°-cos24°=0 (ii)cos²57°+cos²33°=1 (iii)cos²75°-sin²15° - ConceptEra

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Question

Let us show that–(i)sin66°-cos24°=0 (ii)cos²57°+cos²33°=1 (iii)cos²75°-sin²15°

Solution

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