解答參考
久沒算題目,若有計算錯誤還請不吝指教更正
1.49
2.2208
3.\(\displaystyle \frac{363}{1843}\)
4. \(\displaystyle \frac{99\sqrt{3}}{20}\)
5. \(\displaystyle \frac{1}{32}\)
6. 16
7. \(\displaystyle 3\sqrt{35}\)
8. \(\begin{bmatrix} 1&0\\ 0&1 \end{bmatrix}\)
9. \(\displaystyle (\frac{1}{5},\frac{2}{3})\)
10. \(\displaystyle (\frac{3}{5},\frac{11}{5})\)
12. \(\displaystyle a_n=2^{n+1}-n-2\)
13. (1) \(\displaystyle \frac{9}{32}\) (2)\(\displaystyle \frac{1}{4}\)
另想請教第14題