Предмет: Алгебра, автор: ToyDog

Какое из данных ниже чисел является значением выражения √6•4•√90=?
С объяснениями пожалуйста
Даю 19 баллов

Ответы

Автор ответа: kmike21
0
√6*4*√90=4√(2*3*9*2*5)=4√(2²*3²*3*5)=4*2*3√15=24√15
Мы разложили 6=2*3 и 90=9*10=9*2*5
Автор ответа: ToyDog
0
Откуда 3 взял?
Автор ответа: kmike21
0
6 разложил на 3*2
Похожие вопросы
Предмет: Английский язык, автор: vlebedinskaa70
СРОЧНО
РЕШИТЕ КТО-ТО КОНРОЛЬНУЮ ПО АНГЛИЙСКОМУ ЯЗЫКУ ЗА 8 КЛАСС
1. Choose the correct word. I) I'm sure she'll write soon. Just try to be patient/reliable. 2) He's selfish/optimistic about our chances of winning. 3) You can trust Leo - he's totally sociable/honest. 4) I clenched/crossed my teeth, wondering what to do now. 5) Dad started going blond/bald when he was in his thirties. 6) A good-looking/middle-aged young woman in a business suit came into the room. 7) If you're feeling energetic/talkative, we could go out for a run. 8) This noise is driving/breaking me crazy. 2. Fill in the gaps with the correct form of the verbs in brackets. 1) Penguins... (live) in Antarctica. 2) Sorry, I... (not/understand) what you're talking about. 3) She looks sociable.... (shc/like) meeting new people? 4) Look! Helen... (wear) a red dress. 5) We... (have) a barbecue on Saturday afternoon. Do you want to come? 6) The film... (not/start) yet. 7)... (you/speak) to Jeff recently? 8) I... (wait) here for two hours! 9) Oh no! This bottle... (fall). 10) ... (it/be) very expensive? - No, it won't. 11) When... (you/start) learning English? 12) Tommy ... (catch) a really big fish yesterday. 13) We... (work) in the garden when we found some old coins. 14)... (he/ride) his bike while you were shopping? 3. Choose the correct answer. 1) After a while, I got ... and left. a) bore b) bored c) boring 2) He began to feel depressed and b) helpful c) helpless a) help 3) They seem to get ... with cach other. a) along b) down 4) It's taken me ages to get ... the flu. c) across a) on b) with c) over 5) Why are you so jealous... his success? a) of c) about b) to 6) Susan sat on a chair close ... the window. a) with b) to c) at 4. Your grandparents are celebrating the day they got married. Write a greetings card to congratulate them. Use the informal style. (30-40 words.)​
Предмет: Геометрия, автор: ritanebo0811
Предмет: Математика, автор: bystrikovagalina048