Question

помогите плиз:
1) 5arccos 1/2 + 3arcsin (минус корень из 2/2)
2 ) sin (4 arcsin (-1/2)-2 arctg корень из 3/3)

Answer 1

1) =5*π/3 +3 *(-π/4) =11π/12.
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2)  =sin(4*(-π/6) -2*π/6) = sin(-2π/3) -π/3) =sin(-π) =0.