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TSI2
a, b A =
a a a b
a a b a
a b a a
b a a a
A
χAC1←C1+C2+C3+C4A
>2
A>3
A
Z+∞
0
arctan t
1 + t2t
X
n>0
sin(nθ)
n!zn
Mn(R)
A=
1 1 0 ··· 0
0 1 1
0
0 0 1 1
0 0 ··· 0 1
A A−1A
(un)n∈Nu0>1, u1>0
un+2 =√unun+1
unn, u0u1(vn)n∈Nvn= ln(un)
(un)n∈N
1/6X
X
Y
P(Y= 5) = P(Y= 6)
n X Y =n
P(X=k)∩(Y=n)
P(X= 0), P (X= 1) X