Question

Calcule o valor a) log3 (3.81) = , b) log2 512/64, c) log2 (2x4x8x64), d) log7 ( 49x 343/7)

Answer 1

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Ola Thiago

seja logb(b) = 1

a) log3(3*81) = log3(3^5) = 5log3(3) = 5

b) log2(512/64) = log2(8) = log2(2^3) = 3log2(2) = 3

c) log2(2*4*8*64) = log2(4096) = log2(2^12) = 12log2(2) = 12

d) log7(49*343/7) = log7(2401) = log7(7^4) = 4*log7(7) = 4

pronto