How area of a quadrilateral can be determined when its four sides are given?

Wow this is so good

Very good explanation

kzfaq.info/get/bejne/gdOgrJWfvtS-gYE.htmlsi=usj5ctPa9do49QyD

👍

Yay, that was my solution.

What is the volume of water in terms of h only

Outstanding proof! The clearest I've seen so far, thank you so much 😎

VISHNU KANNAN!????

This was a quality video, it should gain more attention.

awesome! Super clear proof. Thanks!!!

May God bless you ❤❤❤❤

yo make more trig videos

Please standardize your g coefficient or explain that this must be on a different planet with different gravity.

good stuff man

wow!!!

I was confused on this part when reading "cracking the coding interview" and this cleared it up. Thank you !

The divisibility rules of every number from 1 to 100 1: Any number is a multiple of 1 2: The number ends in 0, 2, 4, 6 or 8 3: The sum of the digits is a multiple of 3 4: The 10s digit is even and the last digit is 0, 4 or 8, or the 10s digit is odd and the last digit is 2 or 6 5: The number ends in 0 or 5 6: The number is a multiple of 2 and 3 at the same time 7: The difference between twice the last digit and the rest of the number is a multiple of 7 8: The 100s digit is even and the last 2 digits are a multiple of 8, or the 100s digit is odd and the last 2 digits are 4 times an odd number 9: The sum of the digits is a multiple of 9 10: The number ends in 0 11: The difference between the last digit and the rest of the number is a multiple of 11 12: The number is a multiple of 3 and 4 at the same time 13: The sum of 4 times the last digit and the rest of the number is a multiple of 13 14: The number is a multiple of 2 and 7 at the same time 15: The number is a multiple of 3 and 5 at the same time 16: The 1,000s digit is even and the last 3 digits are a multiple of 16 or the 1,000s digit is odd and the last 3 digits are 8 times an odd number 17: The difference between 5 times the last digit and the rest of the number is a multiple of 17 18: The number is a multiple of 2 and 9 at the same time 19: The sum of twice the last digit and the rest of the number is a multiple of 19 20: The number ends in 00, 20, 40, 60 or 80 21: The number is a multiple of 3 and 7 at the same time 22: The number is a multiple of 2 and 11 at the same time 23: The sum of 7 times the last digit and the rest of the number is a multiple of 23 24: The number is a multiple of 3 and 8 at the same time 25: The number ends in 00, 25, 50 or 75 26: The number is a multiple of 2 and 13 at the same time 27: The difference between 8 times the last digit and the rest of the number is a multiple of 27 28: The number is a multiple of 4 and 7 at the same time 29: The sum of thrice the last digit and the rest of the number is a multiple of 29 30: The number is a multiple of 3 and 10 at the same time 31: The difference between thrice the last digit and the rest of the number is a multiple of 31 32: The 10,000s digit is even and the last 4 digits are a multiple of 32 or the 10,000s digit is odd and the last 4 digits are 16 times an odd number 33: The number is a multiple of 3 and 11 at the same time 34: The number is a multiple of 2 and 17 at the same time 35: The number is a multiple of 5 and 7 at the same time 36: The number is a multiple of 4 and 9 at the same time 37: The difference between 11 times the last digit and the rest of the number is a multiple of 37 38: The number is a multiple of 2 and 19 at the same time 39: The number is a multiple of 3 and 13 at the same time 40: The 100s digit is even and the last 2 digits are 00, 40 or 80, or the 100s digit is odd and the last 2 digits are 20 or 60 41: The difference between 4 times the last digit and the rest of the number is a multiple of 41 42: The number is a multiple of 2, 3 and 7 at the same time 43: The sum of 13 times the last digit and the rest of the number is a multiple of 43 44: The number is a multiple of 4 and 11 at the same time 45: The number is a multiple of 5 and 9 at the same time 46: The number is a multiple of 2 and 23 at the same time 47: The difference between 14 times the last digit and the rest of the number is a multiple of 47 48: The number is a multiple of 3 and 16 at the same time 49: The sum of 5 times the last digit and the rest of the number is a multiple of 49 50: The number ends in 00 or 50 51: The number is a multiple of 3 and 17 at the same time 52: The number is a multiple of 4 and 13 at the same time 53: The sum of 16 times the last digit and the rest of the number is a multiple of 53 54: The number is a multiple of 2 and 27 at the same time 55: The number is a multiple of 5 and 11 at the same time 56: The number is a multiple of 7 and 8 at the same time 57: The number is a multiple of 3 and 19 at the same time 58: The number is a multiple of 2 and 29 at the same time 59: The sum of 6 times the last digit and the rest of the number is a multiple of 59 60: The number is a multiple of 3 and 20 at the same time 61: The difference between 6 times the last digit and the rest of the number is a multiple of 61 62: The number is a multiple of 2 and 31 at the same time 63: The number is a multiple of 7 and 9 at the same time 64: The 100,000s digit is even and the last 5 digits are a multiple of 64 or the 100,000s digit is odd and the last 5 digits are 32 times an odd number 65: The number is a multiple of 5 and 13 at the same time 66: The number is a multiple of 2, 3 and 11 at the same time 67: The difference between 20 times the last digit and the rest of the number is a multiple of 67 68: The number is a multiple of 4 and 17 at the same time 69: The number is a multiple of 3 and 23 at the same time 70: The number is a multiple of 7 and 10 at the same time 71: The difference between 7 times the last digit and the rest of the number is a multiple of 71 72: The number is a multiple of 8 and 9 at the same time 73: The sum of 22 times the last digit and the rest of the number is a multiple of 73 74: The number is a multiple of 2 and 37 at the same time 75: The number is a multiple of 3 and 25 at the same time 76: The number is a multiple of 4 and 19 at the same time 77: The number is a multiple of 7 and 11 at the same time 78: The number is a multiple of 2, 3 and 13 at the same time 79: The sum of 8 times the last digit and the rest of the number is a multiple of 79 80: The 1,000s digit is even and the last 3 digits are a multiple of 80 or the 1,000s digit is odd and the last 3 digits are 40 times an odd number 81: The difference between 8 times the last digit and the rest of the number is a multiple of 81 82: The number is a multiple of 2 and 41 at the same time 83: The sum of 25 times the last digit and the rest of the number is a multiple of 83 84: The number is a multiple of 3, 4 and 7 at the same time 85: The number is a multiple of 5 and 17 at the same time 86: The number is a multiple of 2 and 43 at the same time 87: The number is a multiple of 3 and 29 at the same time 88: The number is a multiple of 8 and 11 at the same time 89: The sum of 9 times the last digit and the rest of the number is a multiple of 89 90: The number is a multiple of 9 and 10 at the same time 91: The number is a multiple of 7 and 13 at the same time 92: The number is a multiple of 4 and 23 at the same time 93: The number is a multiple of 3 and 31 at the same time 94: The number is a multiple of 2 and 47 at the same time 95: The number is a multiple of 5 and 19 at the same time 96: The number is a multiple of 3 and 32 at the same time 97: The difference between 29 times the last digit and the rest of the number is a multiple of 97 98: The number is a multiple of 2 and 49 at the same time 99: The number is a multiple of 9 and 11 at the same time 100: The number ends in 00

sinx is equal to x only when x=0

thanks this helped alot❤

Thank you, I have a PMO tomorrow and it will really help

Excellent!👍

my head hurts, but thank u for the explanation :)

This 20 Minuite Video was clearer that my teacher's 4 one hour lectures

at the fist example the cosx+cosxsinx-cosx+cosxsinx/1+sinx-sinx-sin^2 why is the cosx and sin x canceled is it because cos/sin=0 or because cos and cos is the same and is is crossed out also as to sin and sin? ty

Thanks sm for this video

the legend is back again

My teacher is forcing me to watch your video. So up yours

Just assume the height of the rectangle is 0 lol, the radius is 2 lol, the area is pi R^2/2 lol, the area is 4pi/2 lol, the area is 2pi lol

I'm so glad your posting again, your videos really help me learn math and I'm so thankful that you explain things in a simple learnable way. Thank you for your work.

Hmm, I came up with a purely geometrical argument. I imagined two line segments of length x (where x = 2 is the horizontal dimension of these rectangles) connected together by a pivot point that can otherwise move freely, and the right segment pinned to "the page" by another pivot point. The left segment must remain horizontal as the right segment can be swept upwards by an arbitrary angle, sweeping out an arc of radius = x. Thus one can manipulate this assembly to create the relevant aspects of the situation depicted in this problem. Because the left segment remains horizontal, the left edge of the left segment also sweeps out an arc of radius x. My initial question was, is the radius of the semicircle less than or greater than x? By visual inspection of how my system sweeps, I could see that if R > x or if R < x, there could never be a point "C" where the left end of the left segment intersects the semicircle. I can't really show this without a picture, but if you think about it, you'll see what I mean. Thus, R = x. Thus, the area of the semicircle is simply half the area of a circle of radius x = 2, which is pi*x^2 / 2 = 2 Pi.

I like it

thank you dude

How is 8c2 = 28?

Hello sir, I am a self-learner. I need your help. Could you please help me with this question? Rachel is a keen runner. She is supposed to attend running training five days per week. Rachel finds that if she runs one day, the probability that she will run again the next day is 4\5. And if she does not run one day , the probability that she will not run the next day is 3\4. Suppose that Rachel runs one day: (a) What is the probability that she runs the next day? (b) What is the probability that she runs the day after that? (c) What is the probability that she runs exactly twice in the next three days? Answer from textbook is (a) = 4\5 (b) = 0.79 (c) = 0.31

I did it the same way except up until the point AC^2=AD^2+CD^2. Instead, I derived an equation using the area of the right triangle where AC x BD = AD x CD but eventually got the same result

😊😊😊

Wow it looks so easy with the help of your video

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i subscribed dont worry ;) winky face winky face winky face

you are rly smart :)

You are a god

Thanks for the explanation :)

this was awesome!

very well done!

muchas gracias senor

Please why is it that with the fifth practice problem, the 2 was negated. Why did it be like -log3x=2 ?

So simple it is !

21:10 Where are you getting a vector with an x-coordinate of negative root 3? You just got done showing us that the component form of v was <root 3,1> , not negative root 3

life saver