Direct Proof: Prove that if 5x - 7 is odd, then 9x + 2 is even The Math Sorcerer 3:54 2 years ago 20 587 Далее Скачать
Discrete Math Proofs in 22 Minutes (5 Types, 9 Examples) TrevTutor 22:09 1 year ago 81 259 Далее Скачать