Question

Can anyone explain me the logarithm concepts of class 11 ncert mathematics... Pls help me guys!!! Soon....

Answer 1

Log with base a, where a>0 and a not equal to 1.

$log_{a}(x \times y) = log_{a}(x) + log_{a}(y)$

$log_{a}(x \div y) = log_{a}(x) - log_{a}(y)$

$log_{y}(x) = \frac{ log_{a}(x) }{ log_{a}(y) }$

$log_{a}( {x}^{y} ) = y log_{a}(x)$

$log_{ {y}^{a} }(x) = \frac{1}{a} log_{y}(x)$

$log_{a}( a ) = 1$

${a}^{ log_{a}(x) } = x$