Question 25
For a positive real number $x$, $[x]$ is the greatest integer less than or equal to $x$; for example, $[2.35]=2$. Find the ones digit of $\left[(\sqrt2+\sqrt3)^{40}\right]$.
Answer format: an integer without units. Leading zeros are optional; the source uses four digit boxes.
Answer format: an integer without units. Leading zeros are optional; the source uses four digit boxes.