Question

find the sum of n terms of n +(n+2)+(n+4)+.....?​

Answer 1

Step-by-step explanation:

idk if this is correct just ask your teacher once again

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. explanation

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n+(n+2)+(n+4)

multiplying n by (n+2)

we get,

n2+2n + n2+4n

taking n2+2n on right side we get,

n2+4n -n2-2n

so substituting +n & -n2

we get,

-2n+4n

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in conclusion,

n+(n+2)+(n+4) -2n+4n