Find all the real fourth roots of 0.0001.

0.01

-0.1 and 0.1

0.1

-0.01 and 0.01

-0.1 and 0.1

Step-by-step explanation:

A fourth root is a number which multiplied by itself 4 times gives 0.0001.

Since it is an even root and the result is positive, the answer must include both negative and positive values. This is true since a negative times a negative is a positive.

0.1*0.1*0.1*0.1 = 0.0001

So the real fourth roots are - 0.1 and 0.1.