Çeşitli İngilizce öğretmenleri arasından arama yapın...
김연성
When you multiply a negative number twice, why you get a positive number?
I'll explain it to you in an easy way.
-1+1=0.
It means that if you multiply any number x by A number that is the product of -1 and x, you get 0.
To generalize, if any number is x, x+(-1)*x=0.
Now define x as -1. (x = -1)
x=-1, and the equation is x+(-1)*x=0.
To add a number to -1 and get 0, you need to add 1.
x+(-1)*x=0 can be expressed as -1+(-1)*(-1)=0.
If you add any number to -1 to get 0, that number is 1. Since x=-1 before, this equation becomes (-1)*(-1)=(-1)*x=1.
-> (-1)*(-1)=1
So you learn that if you multiply a negative by a negative, you get a positive.
21 Kas 2024 14:22
Düzeltmeler · 7
1
When you multiply a negative number twice, why you get a positive number?
I'll explain it to you in an easy way.
-1+1=0.
It means that if you multiply any number x by A number that is the product of -1 and x, you get 0.
To generalize, if any number is x, x+(-1)*x=0.
Now define x as -1. (x = -1)
x=-1, and the equation is x+(-1)*x=0.
To add a number to -1 and get 0, you need to add 1.
x+(-1)*x=0 can be expressed as -1+(-1)*(-1)=0.
If you add any number to -1 to get 0, that number is 1. Since x=-1 before, this equation becomes (-1)*(-1)=(-1)*x=1.
-> (-1)*(-1)=1
So you learn that if you multiply a negative by a negative, you get a positive.
I am not convinced. You take for granted the existence of multiplication of integers. But how is it defined? What is meant by a*b if a and be are negative integers? Since you haven't said what it means, you can't come to any conclusion about it.
21 Kasım 2024
1
When you multiply a negative number twice, why DO you get a positive number? I'll
explain it to you in an easy way. -1+1=0. It means that if you multiply any
number x by A number that is the product of -1 and x, you get 0. To generalize,
if any number is x, x+(-1)*x=0. Now define x as -1. (x = -1) x=-1, and the
equation is x+(-1)*x=0. To add a number to -1 and get 0, you need to add 1.
x+(-1)*x=0 can be expressed as -1+(-1)*(-1)=0. If you add any number to -1 to
get 0, that number is 1. Since x=-1 before, this equation becomes
(-1)*(-1)=(-1)*x=1. -> (-1)*(-1)=1 So you learn that if you multiply a negative
by a negative, you get a positive.
21 Kasım 2024
Bu içerik Topluluk Kurallarını ihlal ediyor.
22 Kasım 2024
Daha hızlı mı ilerlemek istiyorsun?
Bu öğrenme topluluğuna katıl ve ücretsiz alıştırmaları dene!
김연성
Dil Becerileri
İngilizce, Korece
Öğrenim Dili
İngilizce
Beğenebileceğin Makaleler
Same Word, Different Meaning: American, British, and South African English
22 beğeni · 17 Yorumlar
How to Sound Confident in English (Even When You’re Nervous)
17 beğeni · 12 Yorumlar
Marketing Vocabulary and Phrases for Business English Learners
14 beğeni · 6 Yorumlar
Daha fazla makale
