4 и ещё 5.
Найдите решения, лежащие на указанном промежутке
2sin (3x-pi/4) -корень из 2 = 0 (0°;90°)
ответ должен быть в градусах​

{ x + y = 4
{ 5xy - x² = -64

Подставим у из первого уравнения во второе
{ y = 4 - x
{ 5x(4 - x) - x² = -64

Отдельно решим второе уравнение
5x(4 - x) - x² = -64
20x - 5x² - x² + 64 = 0
-6x² + 20x + 64 = 0

Разделим уравнение на -2
3x² - 10x - 32 = 0

Найдем упрощенный дискриминант и корни уравнения
D₁ = 5² + 32 · 3 = 25 + 96 = 121 = 11²
x₁ = (5 + 11) / 3 = 16 / 3 = 5[1/3]
x₂ = (5 - 11) / 3 = -2

Подставим два корня в первое уравнение системы и получим совокупность систем
[ { x = 5[1/3]
[ { y = -1[1/3]
[
[ { x = -2
[ { y = 6
ответ: (5[1/3]; -1[1/3]); (-2; 6)

https://drinkanddrugsnews.com/event/online-watch-my-hero-academia-heroes-rising-2019-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-artemis-fowl-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-the-king-of-staten-island-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-birds-of-prey-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-bad-boys-for-life-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-sonic-the-hedgehog-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-bloodshot-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-parasite-2019-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-justice-league-dark-apokolips-war-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-the-spongebob-movie-sponge-on-the-run-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-onward-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-mortal-kombat-legends-scorpions-revenge-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-the-gentlemen-2019-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-the-high-note-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-trolls-world-tour-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-gabriels-inferno-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-the-call-of-the-wild-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-greyhound-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-digimon-adventure-last-evolution-kizuna-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-after-we-collided-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-a-whisker-away-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-feel-the-beat-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-infamous-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-scoob-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-pokemon-the-movie-coco-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-a-quiet-place-part-2-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-mulan-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-goblin-slayer-goblins-crown-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-fast-furious-9-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-followed-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-penguin-2020-hd-full-movie-free-download/

https://drinkanddrugsnews.com/event/online-watch-greenland-2020-hd-full-movie-free-download/

Объяснение: