What is typically the first step of an indirect proof?

See below.

Step-by-step explanation:

Very often you start by assuming the opposite of what you are trying to proves is true. This is how you start when you are proving something by contradiction.

Or this is the contrapositive method If you want to prove that A =  B , you start by proving Not B = Not A.

Step-by-step explanation:

Indirect proof consists in demontratring a proposition by contradiction, that is, we write a contradiction of the proposition, if we can demonstrate the contradiction is true, then the original proposition is false.

To apply this method, we assume the opposite of what we want to prove.

For example, if we want to prove that a triangle is isosceles, then we begin saying that the triangle is not isosceles.

Therefore, the right asnwer is D.

black lol

step-by-step explanation:

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tommy has 2.

this made me lol.

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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answers

rauschg

rauschg · hand

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step-by-step explanation: