Mathematics, 26.07.2021 17:50 30valgolden
Cho Tam giác abc vuông tại a , o là trung điểm của bc trên tia đối của tia oa lấy điểm d sao cho od=oa. A) chứng minh rằng Tam giác AOC = Tam giác DOB. B) chứng minh Tam giác BDC vuông
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Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true
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Cho Tam giác abc vuông tại a , o là trung điểm của bc trên tia đối của tia oa lấy điểm d sao cho od=...
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