Coming back here to review for some PChem II stuff and my professor was shooketh that I learned determinants in honors algebra 2 (~4-5 years ago). These videos got me through honors algebra and geometry and now this math channel is like... weirdly nostalgic? Wild.
Thank you so much for the shout out to teachers to reward individual thought and test based on RESULTS, not method! This is SO important, yet not practiced nearly enough. The beautiful thing about math is how many ways there are to approach something. The more tools we have in our pockets, the stronger we'll all be for it. Thank you again!
Been a long time since I messed about with trig-functions, but just for grins, I ran the numbers on the points-defined triangle. Please check my work. It is definitely [a cute, scaly] one with side lengths 7.81, 7.07, 6.08 and angles 72.36°, 59.67°, 47.94°. Taking the longest side (7.81) as the base yields a height of 5.25 and working out the 0.5(b•h) what do you know comes out to 20.5ish. Golly, this maths mumbo-jumbo still works - Quod Erat Demonstandum
Thank you very much. This was explained so good and easy. I can also use this in my electronics to solve the unknown Voltage in 3 x 3 Matrices. God Bless you.
I’m entering high school this year, & I’ll take geometry this school year, & the only thing I can say about determinants is that it looks too simple, no wonder why determinants are 1st taught in Algebra II or Precalculus. That looks way too simple, too simple that it should have been first taught in Algebra I
I'm sure it will later in the years, I am just doing this to learn it for myself right now. Math is my favorite. Next year I will be taking Algebra 2 so it should help me then!
for the first 3 minutes every word that came out of this adult version of diego made me wanna punch a hole through the wall but then he said to pause the video to let it marinate. i fw that word its pretty sick might start saying it more often. this homies chill.
I don’t understand what the matrix key is for for a 3 x 3 when we are only taking the first 3 numbers of the horizon column so surly the key should just comprise of + - +
I tried doing the area thing, and the points were ( 2, 2 ), ( 5, 10 ), ( 12, 5 ) which would make its equation | 2, 2, 1 | 2, 2 (1/2) | 5, 10, 1 | 5, 10 | 12, 5 , 1 | 12, 5 And when I solved for the Area it gave me I.) ( 1 / 2 ) * [( 20 + 24+ 25 ) - ( 120 + 10 + 10 )] II.) ( 1 / 2 ) * [( 69 ) - ( 140 )] III.) ( 1 / 2 ) * -71 IV.) -35.5 The answer would be right, except that it's a negative. So, for future reference, how would I avoid subtracting in the wrong order? Would the bigger number just always be subtracted from instead?
Thomas-Isaac Arcino good question: just remember that all you need to do is take the absolute value of whatever you get, another words, just make the number positive and it works.
is there any Prerequisites learn matrices and determinants ?? actually i dont even know algebra ... please if you can tell it will really gonna help me .... im sorry for my english sir
I got an area of 23 for the final triangle equation that he did not show the solution to in this problem. Does anyone know if this is correct? Thank you:)
2:20 Expansion by minors... lol, i repeated that like 10 times in my head. If the right person with the wrong mind comes across this video they'll start laughing!
I just had to leave a comment because I enjoyed your sense of humor and laughing. Kudos to you to bring some fun into determinants! :-)
Man he always makes math fun... Its been 3 years now but his humour still hits me.. Greatest math teacher 🙏
Coming back here to review for some PChem II stuff and my professor was shooketh that I learned determinants in honors algebra 2 (~4-5 years ago). These videos got me through honors algebra and geometry and now this math channel is like... weirdly nostalgic? Wild.
Positive nostalgia's a beautiful thing. Happy that Yay Math plays a role in your life's ascent.
Thank you so much for the shout out to teachers to reward individual thought and test based on RESULTS, not method! This is SO important, yet not practiced nearly enough. The beautiful thing about math is how many ways there are to approach something. The more tools we have in our pockets, the stronger we'll all be for it. Thank you again!
Preach, Dori! Thank you for the positive feedback.
Been a long time since I messed about with trig-functions, but just for grins, I ran the numbers on the points-defined triangle. Please check my work. It is definitely [a cute, scaly] one with side lengths 7.81, 7.07, 6.08 and angles 72.36°, 59.67°, 47.94°. Taking the longest side (7.81) as the base yields a height of 5.25 and working out the 0.5(b•h) what do you know comes out to 20.5ish. Golly, this maths mumbo-jumbo still works - Quod Erat Demonstandum
Thank you very much.
This was explained so good and easy. I can also use this in my electronics to solve the unknown Voltage in 3 x 3 Matrices. God Bless you.
that second method was insane! this video really helped me understand it (matrices) more!
I’m entering high school this year, & I’ll take geometry this school year, & the only thing I can say about determinants is that it looks too simple, no wonder why determinants are 1st taught in Algebra II or Precalculus. That looks way too simple, too simple that it should have been first taught in Algebra I
Excellent content! This is helping me prepare for an in-class PreCal class that is happening this week. Thank you.
I love all of your videos! I'm a freshman and want to learn what juniors and seniors are doing, this is great. Thanks!
Thanks, Alex! Do you like the calculator part at the end? Hopefully it helps you as well.
I'm sure it will later in the years, I am just doing this to learn it for myself right now. Math is my favorite. Next year I will be taking Algebra 2 so it should help me then!
Just tried it on my school calculator, works perfectly!
Makes it very easy to find D
Now your a sophomore ☺
I like it! Thanks for teaching this and for going the extra mile!
thank you
Thank you ❤
for the first 3 minutes every word that came out of this adult version of diego made me wanna punch a hole through the wall but then he said to pause the video to let it marinate. i fw that word its pretty sick might start saying it more often. this homies chill.
You are the man
Thank u
You make it look easy! 🙂How do you use diagonal method for the second row?
12:37 We both laugh too hard at our own jokes while teaching lol
seriously can't find one goddamn video that explains this conceptually
3:56 i swear i repeated this at least 5 times 😂😂😂🖤🖤🖤
You too? I repeated it at least 10 times! 😁😂👍
Wow excelente! Me suscribiré de inmediato
Love your teaching!
How to write the matrix of minor for 4x4?
I love it sir
I don’t understand what the matrix key is for for a 3 x 3 when we are only taking the first 3 numbers of the horizon column so surly the key should just comprise of + - +
Thank you!! You're awesome!!!
I tried doing the area thing, and the points were ( 2, 2 ), ( 5, 10 ), ( 12, 5 ) which would make its equation
| 2, 2, 1 | 2, 2
(1/2) | 5, 10, 1 | 5, 10
| 12, 5 , 1 | 12, 5
And when I solved for the Area it gave me
I.) ( 1 / 2 ) * [( 20 + 24+ 25 ) - ( 120 + 10 + 10 )]
II.) ( 1 / 2 ) * [( 69 ) - ( 140 )]
III.) ( 1 / 2 ) * -71
IV.) -35.5
The answer would be right, except that it's a negative. So, for future reference, how would I avoid subtracting in the wrong order? Would the bigger number just always be subtracted from instead?
Thomas-Isaac Arcino good question: just remember that all you need to do is take the absolute value of whatever you get, another words, just make the number positive and it works.
Thanks for the education ! Keep it up !
Hey, you ARE good!
In love this method
Why we adding 1,1,1 please explain a low bit
best learning
Thank you
Please send the way to find determinants of 3x2 and 2x3 matrices.
Thanks
I love you
thank you!!!!!!!
Thank u sir
You need a bitcoin address for donations Bro...
is there any Prerequisites learn matrices and determinants ?? actually i dont even know algebra ... please if you can tell it will really gonna help me .... im sorry for my english sir
You are awesome
why does multiplying by half gives the area?
so satisfying
sir why we given negative sign in b/w b and c
I got an area of 23 for the final triangle equation that he did not show the solution to in this problem. Does anyone know if this is correct? Thank you:)
ScopedKilz the answer is 13.47 to the 1264 power
give that man a cookie
i love u
Did this way exactly multiple times on my math homework and I'm getting the answer wrong every time.
2:20 😏.
bruh moment
2:20 Expansion by minors... lol, i repeated that like 10 times in my head. If the right person with the wrong mind comes across this video they'll start laughing!