n "
" "
n2 + 2n - n2 - 2n 2
3n
1
1 + e2
n
(-4)n+7n3
-4
3n+n41
A B
îÅ‚ Å‚Å‚ îÅ‚ Å‚Å‚
1 1 -1 -3
ðÅ‚ ûÅ‚ ðÅ‚-1ûÅ‚
A = 1 -3 2 , B =
-1 2 -1 2
AB a21 = -2
BA a23 = 6
A
C D
5 1 1 -1
C = , D =
3 3 -2 0
CD a22 = 6
C
B
x2-1
f(x) = f (2) = 2
2x2+1
f(x) = x3 x " R
f(g(x)) = 3(x + 2)4 f(x) = 3x2 g(x) = x + 1
363-316-7/4 = 4
"
6416-1/281.5 = 12
(-3)227-218-1/2 = 12
log2 83 = 6
log3 1 = 3
log3 18 - log3 81 = 3
x 1
f(x) = (3x2)2x 9
x2-1
f(x) = 0
2x-2
f(x) = log x "
((3x2)2x) = x2
x3-1
( cos x) = - sin x + x
2x2-2
" "
( x5 + 5) = x3