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Aren’t you coming to learn words with Brother Yi?
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2nd/3ways: trig integral ∫sec(x) dx
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Pantun Melayu [Buah cempedak di luar pagar]
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Pantun Melayu [Sorong papan tarik papan]
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গতি ৭
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sum Find 1/1.4 + 1/4.7 +1/7.10+... +1/((3n-2)(3n+1))
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2nd way: trig integral ∫(sec(x) tan(x))/(sec^2(x)-sec(x)) dx
The extremist slogans “There is no China after Yashan” and “There is no Huaxia after the Ming Dynast
Variability or spread of a distribution. Whey we need it!
prob stat In a sample of n= 6 scores, 5 of the scores are each above the mean by one point.
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Let f(x) be a polynomial of degree 1. If f(10)-f(5)=15, then f(20)-f(5)=?
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No matter how old you are, as long as you hop on a bike, you’ll feel as happy as a kid #RuanRuanBike
prob stat: Find the expected value & std deviation in the number of '6's when 20 dice are rolled.
Find the equation of the tangent line to the curve x^3-3y^3+xy+21=0 at the point (1,2)
matrix example: How to select the column you want ...
2nd way: sq rt integral ∫ √√e^x dx
Head to the scrap yard and build a gaming PC for just 20 yuan!
2nd way: trig integral ∫sin^2(x) cos^3(x) dx
Careful: arc sin(sin(5π/4)) ≠ ...
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3rd/3 ways: Express (4x-17)/((x+4)(2x-3)) in partial fractions via withOUT cover rule