Question

Logarithms

Answer 1

If
\[\large \log_3{x} =a \]
and
\[\log_7{x}=b\]
\[\Large \log_{21}{x} = \]

Answer 2

\(\text{HINT} \)

\[\large \log_3 x = a \implies \log_x 3 = \dfrac{1}{a}\]
\[\large \log_7 x = b \implies \log_x 7 = \dfrac{1}{b}\]

add them

Answer 3

@ganeshie8 -which property of logarithms u used..??

Answer 4

base change

Answer 5

application of base change actually