1 less than the square of a number.

One number less than a square (m − 1) is always the product of √m − 1 and √m + 1 (e.g. 8 × 6 equals 48, while 72 equals 49). Thus, 3 is the only prime number one less than a square. A square number is also the sum of two consecutive triangular numbers.

Step-by-step explanation:

a

step-by-step explanation:

the answer is a

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.