Exponential Form: Exponentiation is a mathematicaloperation, written as , involving two numbers, the base and the exponent . When is a positive integer, exponentiation corresponds to repeated multiplication of the base: that is , is the product of multiplying bases:

In that case,, is called the power of , or raised to the power .

When is a negative integer and is not zero, is naturally defined as

Note:

If is a rational number, then

Reciprocal of is , where and

Let be any non-zero real number and and be positive integers: