1, exponent: exponent is a power operation a? A parameter in (a≠0), where a is the base, n is the exponent, and the exponent is located in the upper right corner of the base. Power operation means the multiplication of the exponent base.

2. Times: In a monomial, the sum of the indexes of all letters is called the times of this monomial.

Second, the calculation method is different.

1, Exponential: Power operation (exponential operation) is a mathematical operation about power. Same base power, constant base, exponential addition; Same base powers divides, the base remains the same, and the exponent is subtracted. Power of power, constant radix, exponential multiplication. Below a≠0.

2. Number of times: The number of times of monomials is only related to the index of letters. For example, the exponent of X in 4x is 1, the degree of this single item is 1, and the degree of 5x2y is 1+2=3. When a number is regarded as a monomial, its number is 0.

Third, the calculation results are different.

1, index:? A is called the base of logarithm. B is called a real number. N is called "logarithm of b with a base". Therefore, in some cases (radix >; 0, instead of 1), the exponent in exponential operation can be obtained by logarithmic operation.

2. Degree: A monomial contains only the letter factor, and its coefficient is 1 or-1. For example, for single ab, the coefficient is1; The coefficient of -n is-1.

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