x + 1 − ( 2 x + 5) | ||
f(x) = | = | |
x*( √x + 1 + √2x + 5) |
− x − 4 | ||
= | = | |
x*( √x + 1 + √2 x + 5) |
−1 − 4x | ||
= | ||
√x + 1 + √2 x + 5 |
x+y | y+z | z+x | |||
, | , | ||||
x2+xy+y2 | y2+yz+z2 | z2+zx+x2 |
log2 x4 | ||
logx2 8 + logx4 8 < | ||
log2 x2 − 4 |
(1−log23)(1+log23+log223) | |||||||||||
= | = | ||||||||||
|
(1−log23)(1+log23+log223) | ||||||||
= | = | |||||||
|
log23(1−log23) | log23*log22/3 | |||
= | = | =log23 | ||
log22/3 | log22/3 |
1 | 1 | 1 | ||||
a)1 b) | c) | d) | ||||
2 | 3 | 4 |
1 | 1 | 1 | ||||
jest nierówność (x+y+z)( | + | + | )≥9 | |||
x | y | z |