العلاقات في المثلث: البرهان غير المباشر- مثال

The video tutorial explains the concept of indirect proof in mathematics. It begins by defining indirect proof and its necessity to assume the opposite of the desired conclusion. The tutorial provides three examples: proving x is greater than 5, showing points J, K, L are collinear, and demonstrating triangle XYZ is congruent. Each example illustrates the process of assuming the opposite and reaching a contradiction to validate the original statement.

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