logarytmy

logarytmy monia41: 2logx+3log2=5

25 lis 09:04

lula: D: x>0 x∊(0, +∞) logx²+log2³=log10⁵ log(x²*8)=log100000 8x²−100000=0 x²−12500=0 (x−50√5)(x+50√5)=0 x₁=50√5∊D x₂=−50√5∉D

25 lis 09:17