Calculus
ln(31+10)\(\ln\]\left\)(\(\frac{3}{1+\sqrt{10}\)}\(\right\))
ln(1+103)\(\ln\]\left\)(\(\frac{1 + \sqrt{10}\)}{3}\(\right\))
ln(10−13)\(\ln\]\left\)(\(\frac{\sqrt{10}\)-1}{3}\(\right\))
ln(1+102)\(\ln\]\left\)(\(\frac{1+\sqrt{10}\)}{2}\(\right\))