Mahi007 Mahi007
  • 25-11-2021
  • Mathematics
contestada

PLEASE HELP!!
100 POINTS
5^a = 2^b = 10, what is a^-1 +b^-1

PLEASE HELP 100 POINTS 5a 2b 10 what is a1 b1 class=

Respuesta :

Аноним Аноним
  • 25-11-2021

Answer:

1.

Step-by-step explanation:

5^a = 10

a log 5 = log 10

a log 5 = 1

a = 1 /log 5

a^-1 = log 5

In the same way:

b = 1 / log 2

b^-1 = log 2,

So a^1 + b^-1 = log5 + log 2 = log (2*5)  

= log 10

= 1.

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