問題: 指數定律+科學記數法
今日喺Facebook見到有人問咗一條看似簡單, 但係又唔可以就咁用計數機㩒個答案出嚟嘅數。想喺依度同大家分享一吓:(begin{align}&dfrac{84^{90}-64^{80}}{20^{70}} \&= dfrac{84^{90}}{20^{70}}-dfrac{64^{80}}{20^{70}} \&= (dfrac{84^{9}}{20^{7}})^{10}-(dfrac{64^{8}}{20^{7}})^{10} \&= (162668553.5...