Part iii. cultural awarenesswhat do these names mean in british and american culture? match the names - id172359320210702 от alisaislamova2 02.07.2021 14:41

Question

Алгебра: Part iii. cultural awarenesswhat do these names mean in british and american culture? match the names to their definitions.1. madame tussaud s is2. paddington is3. beefeater is4. a cardigan is5. a balaclava is6 the scouts is7. the simpsons are8. chaplin isa) a woollen hatb) a railway station in londonc) a wax museum in londond) a warm woollen short jacket with buttonse) a famous american cartoon familyf) a british actor and producerg) an organisation for boys and girls in britain and americah) a

alisaislamova2 · Accepted Answer

{ x + y = pi/2{ sin x + sin y = - V2Подставляем 1 уравнение во 2.{ y = pi/2 - x{ sin x + sin (pi/2 - x) = - V2sin (pi/2 - x) = cos xsin x + cos x = - V2Вынесем V2 за скобки. V2*(1/V2*sin x + 1/V2*cos x) = - V2Но мы знаем, что 1/V2 = sin(pi/4) = cos(pi/4)V2*(sin x*cos(pi/4) + cos x*sin(pi/4)) = - V2В скобках получилась формула синуса суммыV2*sin (x + pi/4) = - V2Делим всё на V2sin (x + pi/4) = - 1Это уже табличное значение синуса.x + pi/4 = 3pi/2 + 2pi*nx = 3pi/2 - pi/4 + 2pi*n = 5pi/4 + 2pi*ny =...

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