(1)计算:(12)?1?2cos30°+27+(2?π)0(2)解方程:4(x-1)>5x-6

(1)计算:(12)?1?2cos30°+27+(2?π)0(2)解方程:4(x-1)>5x-6.
2025-01-01 10:51:37
推荐回答(1个)
回答1:

(1)原式=2-2×

3
2
+3
3
+1
=2-
3
+3
3
+1
=2
3
+3.
(2)去括号,得4x-4>5x-6,
移项,得4x-5x>4-6,
合并,得-x>-2
解得x<2,
所以原不等式的解集是x<2.