121
169
Sn = n2 S12 = 122 = 144.
The numbers are 7 and 6
The domain could be the real numbers, in which case, the range would be the non-negative real numbers.
9 and 12
9 and 12
25.12
12.56
Oh, what a happy little question! The product of the first 30 counting numbers is a big number, but we can handle it. It's called the factorial of 30, which is written as 30! and equals 265252859812191058636308480000000. Just imagine all the beautiful possibilities that number holds!
To find the difference between two numbers, subtract them.
3.14