2 years ago

10. If log10x = 1 + a and log10y = 1 – a, show that xy = 100. How?

Mathematics

1 answer:

gregori [183]2 years ago

7 0

Step-by-step explanation:

log x = 1 + a

a = log x - 1

log y = 1 - a

a = 1 - log y

log x - 1 = 1 - log y

log x + log y = 2

log (xy) = 2

xy = 100

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