October 2021 0 15 Report
1) Вычислить 3tg 3п/4+5sin5п/2-4 cos П/3= 2) Упростите: tg ( π/2+ α) ∙ ctg( 3π/2- α) + cos^2 α=
3) Вычислить: 2 tg 7π/4 + 7sin 9π/2 - 8 sin π/6 =
4) Упростите: ctg ( π/2- α) ∙ tg( 3п/2+ α) + sin^2 α =
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