1)a^2×cos o°-2ab×sin 90°+t^2×tg^2 45 2)a^2×sin180°+2ab×cos90°+b^2×tg - вопрос №866647212290224522180290245 от shishking2015oz5wew 11.07.2021 22:02

Question

Английский язык: 1)a^2×cos o°-2ab×sin 90°+t^2×tg^2 45 2)a^2×sin180°+2ab×cos90°+b^2×tg 45°

shishking2015oz5wew · Answer

Cos0° = 1; sin90° = 1; tg²45° = 11) a² - 2ab + t²sin180° = 0; cos90° = 0; tg45° = 1a²*0 + 2ab*0 + b² = b²...