Question

giving medals!!!!
can u check my answer?

Answer 1

@ganeshie8 @SolomonZelman @sasogeek

Answer 2

Use mathematical induction to prove the statement is true for all positive integers n.

8 + 16 + 24 + ... + 8n = 4n(n + 1)

Answer 3

@master50777

Answer 4

first put n=1
8= ? 4*1(1+1) ok
now put n=k
ans suppose
8+16+24+ +8k =4k(k+1)
now put n=k+1
8+16+24+...+ 8k+8(k+1)=4(k+1)(k+2)

put 8+16+24 +....+8k=4k(k+1)

so
(8+16+24+...+ 8k)+8(k+1)=4(k+1)(k+2)
4k(k+1) +8(k+1)

now factor k+1 then simplify

Answer 5

thanks alot @amoodarya but i wanted u to check my answer:)