Find the exact value of the logarithm without using a calcul

Find the exact value of the logarithm without using a calculator. log_1/5^652 log_1/5 625 = (Type an integer or a simplified fraction.)

Solution

since 625 = 54 = (1/5)-4

log1/5(625) = log1/5(1/5)-4

since log(an)=nlog(a)

log1/5(625) = -4 log1/5(1/5)

since loga(a)=1

log1/5(625) = -4 (1)

log1/5(625) = -4

 Find the exact value of the logarithm without using a calculator. log_1/5^652 log_1/5 625 = (Type an integer or a simplified fraction.)Solutionsince 625 = 54 =

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