MATH 110 Lecture Notes - Lecture 4: Cube Root
Document Summary
To find the square root of a number, you want to find some number that when multiplied by itself gives you the original number. In other words, to find the square root of 25, you want to find the number that when multiplied by itself gives you 25. The square root of 25, then, is 5. The symbol for square root is first eleven perfect (whole number) square roots. Special note: if no sign (or a positive sign) is placed in front of the square root, then the positive answer is required. Only if a negative sign is in front of the square root is the negative answer required. This notation is used in many texts and is adhered to in this book. To find the cube root of a number, you want to find some number that when multiplied by itself twice gives you the original number.
