2 years ago

Please help asap6918

Mathematics

1 answer:

WINSTONCH [101]2 years ago

3 0

Answer:

Step-by-step explanation:

The value of n = 1 , 2 , 3. Find the first 3 term and add them.

3*1 + 3*2 + 3*3 = 3 + 6 + 9

= 18

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