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If proposition x = 3, then x ^ 2-7x + 12 = 0 and the number of its inverse proposition, no proposition, inverse no proposition and false proposition?
X & sup2; - 7x + 12 = 0 → (x-3) (x-4) = 0 → x = 3 or x = 4
Original proposition: if x = 3, then x ^ 2-7x + 12 = 0 (true)
Inverse proposition: if x ^ 2-7x + 12 = 0, then x = 3 (false)
No proposition: if x ≠ 3, then x ^ 2-7x + 12 ≠ 0 (false)
Inverse negative proposition: if x ^ 2-7x + 12 ≠ 0, then x ≠ 3 (true)
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