Arcsin 1 - arcsin (-1) + arccos 1⁄2

Question

Arcsin 1 - arcsin (-1) + arccos 1⁄2

Answer 1

Π/2+π/2+π/3=4π/3
sinπ/2=1⇒arcsin1=π/2
sin(-π/2)=-sinπ/2=-1⇒arcsin(-1)=-π/2
cosπ/3=1/2⇒arccos1/2=π/3

Comments

А решение можно?)

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огромное спасибо)