问题 解答题
(1)解方程:(x-2)2=3(x-2);
(2)化简:
3
sin60°-(cos45°-1)0-tan30°-cot30°
答案

(1)(x-2)2-3(x-2)=0,

(x-2)(x-5)=0,

x1=2,x2=5.

(2)原式=

3
×
3
2
-1-1

=

3
2
-2

=-

1
2

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