Defining the angle between vectors
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i like the way he pronounces the word "perpendicular"
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@afroze4all What has any god to do with math? As you said math was invented by people. Why mix religion in everything when it's fine on its own?
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Ok, so he mentions that "(a . b) = ||a|| ||b|| cos" can be used to find the angle between two vectors but then fails to show how. This videos are starting to suck more and more... NICE WORK SALL!!
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@Osman9100 Hi bro....little correction but dont think me as non-muslims I am a muslim and I am from India.....one thing I can say for sure Math, science, medicine, astronomy and many other sciences were first invented by Indians in the world not by any Arabs or European even. Coming to Islam I will say the only true religion on the phase of earth as it explains us about such great mysterious of time which were not of human knowledge, and this is not by arabs this is by almight god Allah.....
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@10326627 You look like stupid of All time....never call a human as GOD....
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@greyman000 U R right....numbers which we call arabic are not actually arabic they are first used by Indians who introduced them....I am Indian and I am proud of it......now coming to Islam.....In Quran you can see many scientific fact which are now recently discovered......so Its true religion and I am proud to be a Muslim....
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You are a god amongst men! My favourite youtube channel
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You are a god amongst men! My favourite youtube channel
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The best thing about these videos is that you get so motivated to study. A few minutes ago, I was like "Man, I got to hurry up with these dishes, I wanna study!"
Sal gave me my A in the first math course I had a t college, and is giving me the A in the next one right now <3
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Our digits (0, 1, ..., 9) are called "arabic numbers", but they have nothing to do with Islam. First, they where used by the arabic people before Muhammed, and second the arabs accually adopted them from India.
The only reason they are called arabic numbers are because the europeans first learned about them from the arabs, roughly at the time of the crusades. Before that the europeans had used the roman numbers, which are quite clumsy in mathematics.
greyman000 2 years ago 7
i've been studying in this area for 2 years and i have never seen a destinction between between orthognality and perpendicularity clearly delinineated--thanks sal!
yynotx 2 years ago 7