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ericntunctu

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    Two ways: Integral of 1/(x^2+1)^2 from 0 to infinity
    7:25
    Schur's inequality Prove
    5:49
    1935 Maximum Number of Words You Can Type
    1:47
    Canonical form 1: Triangular form
    25:23
    Prove Bohr–Mollerup theorem of Gamma function
    11:32
    Nested radical 2: Nested radical of Ramanujan
    8:13
    Linear transformation and matrices
    13:59
    Nested radical1: Nested radical of Ramanujan
    4:49
    characteristic root and eigenvalue
    17:24
    Trigonometry: Product of sin(kpi/n) from k=1 to n-1
    8:52
    Linear algebra: The property of rank
    6:10
    In triangle, tanA+tanB+tanC=tanA*tanB*tanC
    4:30
    Prove interesting trigonometric identities
    10:37
    sin(x+y)sin(x-y)=(sinx+siny)(sinx-siny)
    3:07
    Factorize a^3 + b^3 + c^3 - 3abc
    5:38
    Inner product space
    20:00
    1437 Check If All 1's Are at Least Length K Places Away
    3:29
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