Judge and correct the mistake.1. All rational numbers are represented by points on the number axis.2. Two numbers with different symbols are opposite numbers.3. Add two numbers and sum is greater than any one. Number, then below, Judge and correct the wrong,1. All rational numbers are represented by points on the number axis.2. Two numbers with different symbols are opposite numbers.3. Add two numbers and sum is greater than any one. Number, then below,

Judge and correct the mistake.1. All rational numbers are represented by points on the number axis.2. Two numbers with different symbols are opposite numbers.3. Add two numbers and sum is greater than any one. Number, then below, Judge and correct the wrong,1. All rational numbers are represented by points on the number axis.2. Two numbers with different symbols are opposite numbers.3. Add two numbers and sum is greater than any one. Number, then below,

1. All rational numbers are represented by points on the number axis (pair)
2. Two numbers with different symbols are opposite numbers (wrong). Change to: Two non-zero numbers with opposite numbers have different symbols.
3. Add two numbers, sum is greater than any one number (error) Change: add two positive numbers, sum is greater than any one number

3 To the 2003 power minus 4 times 3 to the 2002 power plus 10 times 3 to the 2001 power.

3^2003-4×3^2002+10×3^2001=3^2001(3^2-4*3+10)=3^2001×7
So it can be divided by seven.