Mathematics

Mathematics

Problem

If xlog⁡ay+ylog⁡ax=5x \log_a y + y \log_a x = 5, then dydx\frac{dy}{dx} is a. −yx(xlog⁡y+yx+ylog⁡x)-\frac{y}{x} \left( \frac{x \log y + y}{x + y \log x} \right) b. −xy(xlog⁡y+yx+ylog⁡x)-\frac{x}{y} \left( \frac{x \log y + y}{x + y \log x} \right) c. −yx(xlog⁡y−yx+ylog⁡x)-\frac{y}{x} \left( \frac{x \log y - y}{x + y \log x} \right) d. None of these

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