Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Stanford University entrance exam: 25ˣ = 250; x =? log25ˣ = log250, x = log₂₅250 = log₂₅25 + log₂₅10 = 1 + 0.715 = 1.715 The calculation was achieved on a smartphone with a standard calculator app Answer check: x = log₂₅250; Confirmed as shown Final answer: x = log₂₅250 = 1.715
Watch 110+ most important olympiad questions with solutions by just clicking on the link below ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
My dumbass: x = log25(250)
ok
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
As an italian. Is simple whitout a calculator, is immediatly: x= log25(250). Why is a trouble for you?
x = log(250) / log(25)
= (log(2) + 3log(5))/2log(5)
This video can be a short video under 1 minute.
fantastic job, thanks
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
x=log250/log25=(log25+log10)/log25=1+1/(2log5)≈1+1/(2×0.699)≈2398/1398≈1.7153.
Deviation is about 0.00003.
25^1.7153≈249.97.
ok
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
That is pretty cool
ok
25x = 250
x = log 250/log25
x = 1.71534
25^1.71534= 250
beautiful method
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
25^(x-1) = 250/25
5^(2x-2)-1 = 10/5
2x-3 = (log2/log5 )
x = ((log 2/log 5) + 3) / 2
wonderful dear, thanks
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
❤❤❤
thanks
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
How is this Stanford U entrance exam? This is not even a high school entrance exam
this is math olympiad question appeared in exam
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
But it's simple. And in math y had f---😅 whitout calculated.
All number whit exponent x =b x= loga( b)
x=3/2
ok
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Excelent video 10/10
thank you so much
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
= 1,71533...
ok
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
Meh... 25^(log_(25)250)=250. Logic.
fantastic
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!
@@fireblast3740 Real
Stanford University entrance exam: 25ˣ = 250; x =?
log25ˣ = log250, x = log₂₅250 = log₂₅25 + log₂₅10 = 1 + 0.715 = 1.715
The calculation was achieved on a smartphone with a standard calculator app
Answer check:
x = log₂₅250; Confirmed as shown
Final answer:
x = log₂₅250 = 1.715
thanks
25ⁿ=250=25(10)=5²(2×5)=5³2
=> (5²)⁰=5³2
=> 5²ⁿ/5³=2
=> 5²ⁿ-³=2
=> log[5^(2n-3)]=log2
=> (2n-3)log5=log2
=> 2n-3=log2/log5
=> 2n-3=(0,3010)/(0,6989)
=> 2n-3≈ 3010/6989 ≈3000/7000
=> 2n-3≈ 3/7= 0,4285714...
=> 2n≈ 3,4285714...
=> n≈ 1,7142857...
=> n ≈ 1,715
25^(1,715)≈249,73 (good approx.)
249,73 ≈ 250
good
Watch 110+ most important olympiad questions with solutions by just clicking on the link below
ua-cam.com/play/PLybCHBiqtqWP-TrcsG21MXXxlknROi514.html
Don't forget to share this link with your classmates so that they also have a benefit of it. Please, like and subscribe this channel including pressing bell icon to get the notification of new video!