Question

calcule: (Algoritmo)

Log 5 625:

Log 7 49:

Log 2 128:

Log 3 27:

Answer 1

vamos lá...

$\log_5625=x \\ \\ 5^x=625 \\\not5^x=\not 5^4 \\ x=4 \\ \\ b) \\ \log_749=x \\ 7^x=49 \\ \not7^x=\not7^2 \\ x=2 \\ \\ c) \\ \log_2128=x \\ 2^x=128 \\ \not2^x=\not2^7 \\ x=7 \\ \\ d) \\ \log_327=x \\ 3^x=27 \\ \not3^x=\not3^3 \\ x=3$