(1)|-2|+(3-π)0-2-1+3?27.(2)cos60°+22sin45°+tan30°?cos30°

(1)|-2|+(3-π)0-2-1+3?27.(2)cos60°+22sin45°+tan30°?cos30°.
2025-12-16 19:20:22
推荐回答(1个)
回答1:

(1)原式=2+1-

1
2
-3=-
1
2

(2)原式=
1
2
+
1
2
+
3
3
×
3
2
=1
1
2