Find the value of the missing angle (in degrees). 1. cos(__°) = cos(83°)cos(24°) − sin(83°)sin(24°) 2. cos(__°) = cos(78°)cos(43.0°) + sin(78°)sin(43°) 3. cos(65°) = cos(__°)cos(18°) − sin(__°)sin(18°)

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