Ответ:
-0.32
Пошаговое объяснение:
(sin A - cos A)^2 = 0.6^2 =0.36 = (sin A)^2 + 2*sin A * cos A + (cos A)^2 = [ (sin a)^2 + (cos A)^2 = 1] = 1 + 2*sin A*cos A
2sin A * cos A = 0.36 -1
2 sin 2A = -0.64
sin 2A = -0.64/2 = -0.32
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Ответ:
-0.32
Пошаговое объяснение:
(sin A - cos A)^2 = 0.6^2 =0.36 = (sin A)^2 + 2*sin A * cos A + (cos A)^2 = [ (sin a)^2 + (cos A)^2 = 1] = 1 + 2*sin A*cos A
2sin A * cos A = 0.36 -1
2 sin 2A = -0.64
sin 2A = -0.64/2 = -0.32