Ответ:
Пошаговое объяснение:
sin α = cos(π/2 - x)
sin (π/8) = cos (π/2 -π/8) = cos (3π/8)
и тогда
arccos(sin pi/8) = arccos(cos(3π/8)) = 3π/8
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Ответ:
Пошаговое объяснение:
sin α = cos(π/2 - x)
sin (π/8) = cos (π/2 -π/8) = cos (3π/8)
и тогда
arccos(sin pi/8) = arccos(cos(3π/8)) = 3π/8