What is the integral of -LSB- math -RSB- \ log -LCB- x + \ sqrt -LCB- x ^ 2 + a ^ 2 -RCB- -RCB- -LSB- / math -RSB- ?
What is the integration of -LSB- math -RSB- \ frac -LCB- x ^ 2 -RCB- -LCB- \ sqrt -LCB- x +2 -RCB- -RCB- \ mathrm -LCB- dx -RCB- -LSB- / math -RSB- ?