Question

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Answer 1

Ответ:

3tg(-π/6)*ctgπ/3+sin3π/2-4cosπ/4=3*(-√3/3)*√3/3-1-4*√2/2=-√3*√3/3-1-2√2=-3/3-1-2√2=-1-1-2√2= -2-2√2.