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All You Need to Know about Slopes of Parallel and Perpendicular Lines 532 Views
So many parallel and perpendicular lines all over the place, and none of them have been labeled. Which begs the question: whose lines are they, anyway?
CAHSEE Math: Algebra and Functions Drill 5, Problem 3
If you already know what a conditional statement is, then you're smarter than you look! And boy do you look smart.
Sounds logical to us!
Indirect proofs (or proofs by contradiction) prove their conclusion by showing that the opposite cannot be true. You can use this in math and in ar...
Formal proofs present the oh-so-mathematical evidence in two columns: one for the statement they are claiming is true, and the other for the reason...