x |
16.0 |
16.1 |
16.2 |
16.3 |
16.4 |
16.5 |
16.6 |
16.7 |
16.8 |
x2 |
256 |
259.21 |
262.44 |
265.69 |
268.96 |
272.25 |
275.56 |
278.89 |
282.24 |
①272.25的平方根是 ▲
② = ▲ , = ▲ , = ▲
③设 的整数部分为a,求-4a的立方根.