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Problem If y = log 10 x + log x 10 + log x x + log 10 10 y = \log_{10} x + \log_x 10 + \log_x x + \log_{10} 10 y = log 10 x + log x 10 + log x x + log 10 10 , then d y d x = \frac{dy}{dx} = d x d y =
(a) 1 x log e 10 − log e 10 x ( log e x ) 2 \frac{1}{x \log_e 10} - \frac{\log_e 10}{x(\log_e x)^2} x l o g e 10 1 − x ( l o g e x ) 2 l o g e 10
(b) 1 x log e 10 − 1 x log 10 e \frac{1}{x \log_e 10} - \frac{1}{x \log_{10} e} x l o g e 10 1 − x l o g 10 e 1
(c) 1 x log e 10 − log e 10 ( log e x ) 2 \frac{1}{x \log_e 10} - \frac{\log_e 10}{(\log_e x)^2} x l o g e 10 1 − ( l o g e x ) 2 l o g e 10
(d) None of these
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