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2 ways: integral ∫(x-a)/(x+a) dx
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count quick review: Permutation vs Combination
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A box contains 8 blue & 6 red socks. What is the number of ways that 2 socks can be drawn ...
count comb: values nCn, nC(n-1), nC(n-2)
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#8 Lamar U: evaluate integral sec^8(t/2) tan^5(t/2) dt
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2nd way: sqrt trig integral ∫1/(√x cos^2(√x)) dx
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Evaluate the integrals
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