Question

Look at this sequence of numbers: 0, 1, 2, 4, 6, 9, 12, 16, ? - what number should replace the question mark?
19, 20, 21 or 22

Answer 1

Answer: 20

Explanation:(n)^2 ,{(n)^2+1} , (n)^2 , {(n)^2+2} , (n)^2 , {(n)^2+3}................

(1)^2 =1 , (1)^2+1=2 , (2)^2=4 , (2)^2+2=6,.................(4)^2+4=20.

So 20 becomes the answer.

mark as brainliest.