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Stabiliti monotonia functiilor:
1) f:R-->R
f(x)=2x+3+5^(x-1)
2)f:(-infinit,1)-->R
f(x)=x^2-2x+5+log2(1-x)
3)f:(1,infinit)-->R
f(x)=2^[(x-1)/(x+1)]