Math, asked by ansh30915, 9 months ago

4+8+12...+4n=2n(n+1)
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Answers

Answered by Anonymous

1

Step-by-step explanation:

An=a+(n-1)d

d=4

a=4

An=4n

4n=4+(n-1)4

4n=4+4n-4

n= 1

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