Предмет: Математика, автор: akvilon111

-5-2sin² x, если cos² x=0,7

Ответы

Автор ответа: sedinalana

0

cos²x=0,7
sin²x=1-cos²x=1-0,7=0,3
-5-2sin²x=-5-2*0,3=-5-0,6=-5,6

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