Предмет: Алгебра, автор: sincel

упростите выражение: sint*cost (tgt+ctgt)

Ответы

Автор ответа: Milli205

0

sint*cost (tgt+ctgt)= sint*cost (sint/cost+cost/sint)=sint*cost*(sin^2t+cos^2t)/(cost*sint)=1

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