1.He is ofter late_____school.A.to B.for C.of D.in2.Can you find_____for me?A.job B.works C.a job D.a work3.The shop_____at seven.A.opens B.open C.is opening D.is opened请你写出命题“角平分线上的点到角两边的距离相等”的逆命
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1.He is ofter late_____school.A.to B.for C.of D.in2.Can you find_____for me?A.job B.works C.a job D.a work3.The shop_____at seven.A.opens B.open C.is opening D.is opened请你写出命题“角平分线上的点到角两边的距离相等”的逆命
1.He is ofter late_____school.
A.to B.for C.of D.in
2.Can you find_____for me?
A.job B.works C.a job D.a work
3.The shop_____at seven.
A.opens B.open C.is opening D.is opened
请你写出命题“角平分线上的点到角两边的距离相等”的逆命题,并指出逆命题的题设和结论.
逆命题是________________________________________.
其题设是:__________________________________________.
结论是:____________________________________________.
它是____命题.(填“真”或“假”)
1.He is ofter late_____school.A.to B.for C.of D.in2.Can you find_____for me?A.job B.works C.a job D.a work3.The shop_____at seven.A.opens B.open C.is opening D.is opened请你写出命题“角平分线上的点到角两边的距离相等”的逆命
A C A 第一题看不大懂
到角两边的距离相等的点的集合是这个角的角平分线
到角两边的距离相等的点的集合
该集合是这个角的角平分线
假 (角平分线的反向延长线上的点到角两边的距离也相等)
A C A
逆命题是:到角两边的距离相等的点的集合是这个角的角平分线
其题设是:到角两边的距离相等的点的集合
结论是:该集合是这个角的角平分线
它是假命题