Tg1,5⋅ctg1,5+ctg^2(−5π/6)−sin^2(π/2)−cos^2(π/2) =

Question

Tg1,5⋅ctg1,5+ctg^2(−5π/6)−sin^2(π/2)−cos^2(π/2) =

Answer 1

1
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