Matemática, perguntado por inrique2003, 5 meses atrás

MARCO COMO MELHOR PARA QUEM DAR A RESPOSTA COMPLETA;

Considerando log2=0,301:log3=0,477:log5=0699,calcule.

a)og15
b)log(2,5)
d)log(10/3)
e)log60
f)log(25/9)

Soluções para a tarefa

Respondido por auditsys
0

Resposta:

\textsf{Leia abaixo}

Explicação passo a passo:

\mathsf{log\:2 = 0,301}

\mathsf{log\:3 = 0,477}

\mathsf{log\:5 = 0,699}

\mathsf{log\:15 = log\:(3.5)}

\mathsf{log\:15 = log\:3 + log\:5}

\mathsf{log\:15 = 0,477 + 0,699}

\boxed{\boxed{\mathsf{log\:15 = 1,176}}}

\mathsf{log\:(2,5) = log\:\dfrac{25}{10}}

\mathsf{log\:(2,5) = log\:\dfrac{5^2}{10}}

\mathsf{log\:(2,5) = 2\:log\:5 - log\:10}

\mathsf{log\:(2,5) = 2(0,699) - 1}

\mathsf{log\:(2,5) = 1,398 - 1}

\boxed{\boxed{\mathsf{log\:(2,5) = 0,398}}}

\mathsf{log\:\left(\dfrac{10}{3}\right) = log\:10 - log\:3}

\mathsf{log\:\left(\dfrac{10}{3}\right) = 1 - 0,477}

\boxed{\boxed{\mathsf{log\:\left(\dfrac{10}{3}\right) = 0,523}}}

\mathsf{log\:60 = log\:(2^2.3.5)}

\mathsf{log\:60 = 2\:log\:2 + log\:3 + log\:5}

\mathsf{log\:60 = 2(0,301) + 0,477 + 0,699}

\mathsf{log\:60 = 0,602 + 0,477 + 0,699}

\boxed{\boxed{\mathsf{log\:60 = 1,778}}}

\mathsf{log\:\left(\dfrac{25}{9}\right) = log\:\dfrac{5^2}{3^2}}

\mathsf{log\:\left(\dfrac{25}{9}\right) = 2\:log\:5 - 2\:log\:3}

\mathsf{log\:\left(\dfrac{25}{9}\right) = 2(0,699) - 2(0,477)}

\mathsf{log\:\left(\dfrac{25}{9}\right) = 1,398 - 0,954}

\boxed{\boxed{\mathsf{log\:\left(\dfrac{25}{9}\right) = 0,444}}}

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