2 years ago

Show that the additive inverse or negative of an even number is an even number using a diret proof.

Mathematics

1 answer:

Mumz [18]2 years ago

8 0

Answer:

Jjdjskfksigkgkgkofooooodf

Step-by-step explanation:

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FrozenT [24]

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3 years ago

1. The sum of first n terms of an arithmetic sequence is 3n²+4n

valentina_108 [34]

Answer:

Step-by-step explanation:

$a_1=S_1=3\cdot1^2+4\cdot1=3+4=7$

$a_1+a_2=S_2\\\\a_1+a_1+d=3\cdot2^2+4\cdot2\\\\7+7+d=3\cdot4+8\\\\14+d=12+8\\\\d=6\\\\\\a_n=a_1+d(n-1)\\\\a_n=7+6(n-1)\\\\a_n=7+6n-6\\\\\underline{a_n=7n+1}$

$a_{20}=7\cdot20+1=141$

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3 years ago

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3 years ago

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Kisachek [45]

5 becaue its goodflooru

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3 years ago

Which is an example of an algebraic expression?

azamat

An algebraic expression doesnt have an equals sign or an inequality sign.

So,

A is an expression
B is an inequality
C is an equation
D is an in inequality

So the answer is A

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3 years ago

Show that the additive inverse or negative of an even number is an even number using a diret proof.​

Show that the additive inverse or negative of an even number is an even number using a diret proof.