What is the derivative with respect to x -LSB- math -RSB- \ frac -LCB- x -RCB- -LCB- y -RCB- + \ frac -LCB- y -RCB- -LCB- x -RCB- = 1 -LSB- / math -RSB- ?
What is derivative of y with respect to x where -LSB- math -RSB- y = \ sin x \ cdot \ log x \ cdot e ^ x -LSB- / math -RSB- ?