Current location - Training Enrollment Network - Mathematics courses - Find a pattern. What's behind 246 639 437 325?
Find a pattern. What's behind 246 639 437 325?
The sum of two numbers is equal to the third number, 2+4=6(246) and 6+3=9(639). The significance of finding the law to fill in the blanks lies in strengthening the understanding of the general law of sequence.

Although it has many solutions, it is mainly to cultivate your ability to discover the general law of series and guess the general term of series (that is, the ability to use incomplete induction).

So that when we encounter some series whose general term is difficult to find by general methods, we can guess the general term formula of this series quickly and accurately through the first few terms.

Then prove it by mathematical induction or reduction to absurdity or other methods, bypass the front mountain and quickly get its general formula (generally obtained by mathematical induction). Therefore, finding the rules to fill in the blanks will still help us to enhance our understanding of some difficulties and characteristic series.