Відео

Or much simpler just split it into two easier problems and say: 25x20 + 25x8 = 500 + 200. Easy to do with head math.

Mr Ed yu, do you think you can help me with radicals and rationals

take two number somewhat close to and over 40. first number we will call: 40 + a second number will be: 40 + b multiplying these number algebraically can be written as: (40 + a) (40 + b) using the FOIL method this would become: 40^2 + 40a + 40b + ab using this algorithm add a + b to 40 ==> 40 + a + b multiply by 2 ==> 2(40 + a + b) multiply by 2 ==> 4(40 + a + b) multiply by 10 ==> 40(40 + a + b) add a * b ==> 40(40 + a + b) + ab 40(40 + a + b) + ab ==> 40^2 + 40a + 40b + ab Both methods are functionally equivalent, but FOIL works great on paper whereas this method is doable in your head when the numbers are not too big.

Not really that much quicker than .. 2 x 26 = 52 add the zero 520 3 x 26 = 78 add 520 and 78 = 598

Awesome

This is a amazing video helped me with my test😂

thank you you’re a life saver! my teacher never provided the video for this lesson 😢

You should really solve the practice Tests:)) Would really appreciate it!

9+8+7+6+5+4+3+2+1=45, there you have it.

A bit complicated. Use the handshaking lemma. The sum of the degrees is twice the number of edges. (10×9)/2

The goat🐐

CAN YOU PLEASE PLEASE MAKE MORE VIDEOS ABOUT 8.5- Using Roots, Zeros, and X-ints to find Quadratics and all the other lessons in that book PLEASE! Your videos made me pass my test with a 80% PLEASE sir!

Holy we are getting Ed yu shorts, too OP.

I'm assuming this is 30-1 right? Either way, loved your videos and they really do help people 😀

you're always my go to for when my teachers not here thanks for the help as always

Oh my goodness, all of your videos are so helpful for studying, thank you.

Can’t hear

this hpfl broski

yaaaaarrrrraaaaaa

Good one

when using system of equations aren't you supposed to subtract the top from the bottom? You added

Your a great guy

at 10.08 Question F...How did you get the -3/2 exponent?

sigma

for class example 4 wouldn’t the horizontal translation coming before the horizontal stretch mean that only the variable (x) is multiplied by the reciprocal of b, instead of x and the translation?

What is the book called

you are my saviour!! Thank you so much!

ur saving me, I love you

great video

These walkthroughs are incredibly helpful, thank you so much!!

oh ya bud

Thank you so much for these videos! They are very helpful! I was just wondering for class example 2b: could you put x=pi/6 + (2pi/3)n, n∈I? Just to share my rationale: In degrees, the angles are 30, 150, and 270 (I find working directly with degrees is significantly easier than radians). You can step between each by adding or subtracting 120 degrees, and if you add 120 to 270, you get 390, which is 360 + 30, meaning that it loops around. The relationship also works going the other way, going from 30 to -90 (which is a coterminal angle of 270). Finally, 120 degrees in radians is 2pi/3. So I think this would mean that a single equation for the general solution could be established. Again, thank you so much for making these videos!!

This helped me a lot with my work thank you Mr. Yu!

is this math 30 1 the canada one

Is this MATH 202 statistics? I'm in 1st semester nursing program? Please help

is this explanation for calculas too ?

Thank you so much! You're literally the only thing getting me through finals <3

Man thankyouuuu your lessons help me alot

Legend

My exam for combinatorics is tomorrow and you actually helped so much! My teacher doesn’t go through examples this in depth, so thanks 🎉🎉

Hi! Wouldn't 7!/(3!4!) be equal to 35 and 4!/(2!2!) equal 6 thus 35 times 6 = 210?

trash❤

Wow. Thank you for the simple and straightforward explanations. The first time I looked at perms and combs, I thought it was pretty hard, but learning from your thought process has made it much simpler. Your videos have helped carry me for 20-1 and 30-1. Thank you for the awesome work!

Hey Ed! Could you point me to the direction to where I can find practice tests to study for? It'll be much appreciated. Thanks!

It's so helpful

Thank you

Isn't this 30-2?

For Class Example#1, did you edit this video at 13:39? Are you trolling us? Cuz the non permissible value is suppose to be π/2, the denominator cannot have cos x = 0, the x value = π/3 is not the non permissible value. You edited the video and gave the results for the restriction to make it look like π/3 is the npv. You even contradicted yourself later when answering d) at 16:26. Perhaps this is a mistake when you edited your video, but I spent about 15 minutes checking my calculator and trying to figure out why using π/3 wasn't showing the npv. Then I rewatched your video again and noticed what you did. I think you got confused for a moment and thought verifying of the statement was related to the restriction. The π/3 value is only meant for verifying, to show that the Y-value is the same for both sides which is 1.5 or 3/2.

For Class Example #1, d) you did not write the 5 before the cos. It should be d(2) = 12 + 5 cos(0.5(2)) = 14.7 meters. Just writing it for other students who may use your videos. Thanks for your work.