помогите пожалуйста, срочно надо))
а) arccos(-1/2)+arcsin(-1/2)
б) arccos(-√2/2)-(arcsin (-1)
в) arccos (-√3/2)+ arcsin (-√3/2)
г) arccos √2/2- arcsin (-√3/2)
а) arccos(-1/2)+arcsin(-1/2)
б) arccos(-√2/2)-(arcsin (-1)
в) arccos (-√3/2)+ arcsin (-√3/2)
г) arccos √2/2- arcsin (-√3/2)
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б) arccos(-√2/2)-(arcsin (-1) = 3п/4 - (-п/2) = 3п/4 + п/2 = 5п/4.
в) arccos (-√3/2)+ arcsin (-√3/2) = 5п/6 + (- п/3) = 5п/6 - 2п/6 = п/2.
г) arccos √2/2- arcsin (-√3/2) = п/4 - ( - п/3)= п/4 + п/3 = 7п/12.