Тренажер. Задание №3211

1 вопрос

Даны векторы ${"aid":null,"id":"1","code":"$$\\vec{a}$$","type":"$$","backgroundColorModified":false,"font":{"color":"#302a3e","family":"Arial","size":11},"backgroundColor":"#ffffff","ts":1752314972743,"cs":"v9Wao+tspiFdt+j7OiFr/A==","size":{"width":8,"height":12}}$ (2;-5) и ${"aid":null,"font":{"color":"#302a3e","family":"Arial","size":11},"backgroundColor":"#ffffff","code":"$$\\vec{b}$$","id":"2","type":"$$","backgroundColorModified":false,"ts":1752314981703,"cs":"+En1ASJI0CIgQ0yP/LNtfA==","size":{"width":6,"height":16}}$ (5; 7). Найдите скалярное произведение векторов ${"aid":null,"backgroundColorModified":false,"type":"$$","code":"$$0,6\\vec{a}$$","font":{"color":"#302a3e","family":"Arial","size":11},"backgroundColor":"#ffffff","id":"3","ts":1752315015402,"cs":"fmMlg6FZPUI0J9NGqlwXsg==","size":{"width":32,"height":16}}$ и ${"backgroundColorModified":false,"font":{"family":"Arial","color":"#302a3e","size":11},"code":"$$1,4\\vec{b}$$","type":"$$","backgroundColor":"#ffffff","id":"4","aid":null,"ts":1752315044068,"cs":"Bfr6438j6tZryU0gL7uteg==","size":{"width":30,"height":20}}$ .