问题
解答题
计算: (1)8
(2)2log525+3log216-8log71. |
答案
(1)8
+(-2 3
)0-(3 5
)-2+1 3
=22+1-32+π-3=π-7;(3-π)2
(2)2log525+3log216-8log71=2×2+3×4-0=16.
计算: (1)8
(2)2log525+3log216-8log71. |
(1)8
+(-2 3
)0-(3 5
)-2+1 3
=22+1-32+π-3=π-7;(3-π)2
(2)2log525+3log216-8log71=2×2+3×4-0=16.