(0,5+0,5)/(-0,5-0,5)=-1
Ответ:
-1
Пошаговое объяснение:
(sin30*+sin150*)/(cos120*-cos60*)
sin30 = 1/2
sin150 = sin(180 - 30) = sin30 = 1/2
cos120 = cos(180 - 60) = -cos60 = -1/2
(1/2 + 1/2)/(-1/2 - 1/2)
1/(-1) = -1
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(0,5+0,5)/(-0,5-0,5)=-1
Ответ:
-1
Пошаговое объяснение:
(sin30*+sin150*)/(cos120*-cos60*)
sin30 = 1/2
sin150 = sin(180 - 30) = sin30 = 1/2
cos120 = cos(180 - 60) = -cos60 = -1/2
(1/2 + 1/2)/(-1/2 - 1/2)
1/(-1) = -1