Question

Determinar o conjunto solução de 2^X = 5^x

Answer 1

2^x = 5^x

ln2^x = ln5^x

xln2 = xln5

xln2-xln5=0

x(ln2-ln5)=0

xln(2/5)=0

x=0/ln(2/5)

x = 0
bjs