Sin(-π/4)*ctg(-π/4)*-cos(-π/6)*tg(-π/4)

Question

Sin(-π/4)*ctg(-π/4)*-cos(-π/6)*tg(-π/4)

Comments

котангенс пи \4 минус или умножить ???????????

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умножить

Answer 1

= - √2\2 * (-1) * (√3\2) *(-1) = - √2√3 \ 4 = - √6\4