2. Өрнектің мәнін табыңдар:1) arcsin0,5 + arccos(-1) - arccos0- arctg1
2)arcsin корень3/2+arccos(-корень2/2)-arccos корень3/2-arcctg1
3)arctg корень3+arccos корень2/2-arccos(-корень3/2)-arcsin1
4)arcsin(-корень3/2)+arccos1/2-arccos0-arcctg(-1)​

! Online Чтение
1) arcsin0,5 + arccos(-1) - arccos0- arctg1 =30° +180° -90° -45° = 75° ;
2) arcsin(√3/2)+arccos(-√2/2)- arccos(√3/2)-arcctg1
= 60°+135° -30°-45° =120° ;
3) arctg(√3)+arccos(√2/2)-arccos(-√3/2)-arcsin1
=60°+45°-150°-90° = - 135° ;
4)arcsin(-√3/2)+arccos(1/2) - arccos(0) - arcctg(-1)​= - 60°+60°-90°-135° = - 225° .
= = = = = = = = = = = = = = = = = = = = =
* * * - 90° ≤ arcsin(a) ≤90° ; - 90° < arctg(a) < 90° ; 0° ≤ arccos(a) ≤180° ;
0° < arcctg(a) < 180° . || 180° = π/2 || * * *

Ответ:

Объяснение:
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