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wolverine [178]
3 years ago
13

How does an indirect proof differ from a regular proof ?

Mathematics
2 answers:
Vlad [161]3 years ago
6 0

Answer and Step-by-step explanation:

Regular proof is a method of proving the statement directly.

In this method, we just proved it by using direct formula or theorem.

whereas,

Indirect proof is a way of proving by contradiction.

In this method we assume first that the given statement is false, then it is proved correct by contradiction.

ss7ja [257]3 years ago
3 0

Answer:

Regular proof is all about known facts that is for e.g X must be true, while in indirect proof you assume X is true

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Read 2 more answers
Translate to a system of equations:
omeli [17]

Answer:

m + n = 15

m - 3 = n

The numbers are 9 and 6

Step-by-step explanation:

From the question,

The sum of two numbers is fifteen; the first number is m and the second number is n. To translate to a system of equations, we can write that

m + n = 15 ..... (1)

Also, from the question,

One number is three less than the other,

Also, to translate to a system of equations, we can write that

m - 3 = n ...... (2)

If desired, we can determine m and n

From equation (1)

m + n = 15

Then,

m = 15 - n ...... (3)

Put the value of m in equation (3) into equation (2)

m - 3 = n

Then

15 - n - 3 = n

15 - 3 = n + n

12 = 2n

n = 12/2

∴ n = 6

For m, put the value of n into equation 3

m = 15 - n

m = 15 - 6

m = 9

∴ m = 9 and n = 6

Hence, the numbers are 9 and 6

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