1 View PremiumJun 20, 2023
Always ZERO
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logic Idempotent law show x=xVx
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Swinburne U 2nd way: e^(-e^x) e^x dx
11 Views
MP 8,93,96,97,99 Hindustan: Evaluate ∫ sec(x)/(sec(x)-tan(x)) dx
33 Views
Pantun Melayu [Sorong papan tarik papan]
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Conversion: Permutation - Combination vice versa
2 ways: trig show tan(2x)=2tan(x)/1-tan^2(x))
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alternate way: count sum 1+2+3+ ... +n
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1st/2ways: exp e^g(x) (g'(x)f(x) + f'(x)) dx
Do you know ... paper folding ...
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1st/2ways: permutation Show P(n,2)+P(n,1)=n^2
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prob stat: 2 formula for sample variance
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2nd/2ways: add math sum a + (a+d) + (a+2d) + ... + (a+(n-1)d) ?
count comb: How many subsets does {{{118},{{18,19,20,21,...,118}},{{{118}}} }} have?
example: Mean, Median & Mode
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"baby" fact: exp even odd e^x
count comb: values nCn, nC(n-1), nC(n-2)
There are 2 lines. One line has 3 points & the other line has 6 points.
2 ways: integral ∫x/(x+a) dx
2 way: exp integral e^(ax+b)/1+e^(ax+b)) dx