Rules for finding cube
Answers
Answer:
Step-by-step explanation:
Cube is the product of a number multiplied by its square, represented by a superscript figure 3. Hence, cube of x is nothing but square of x multiplied by x.
cube formula→ x³= x² × x
1. To find cube of any number, it is of utmost importance that you know the cubes of numbers from 1 to 15 at the tip of your fingers.
2. When perfect cubes end with, 1, 4, 5, 6, 9 and multiples of 0, the cube root also ends with 1, 4, 5, 6, 9, and 0 respectively.
3. Perfect cubes ending with 2 form complimentary pair with perfect cubes ending with 8. Which means, if a number is ending with 8, the cube root ends with 2. And when a number ends with 2, the cube root ends with 8.
4. Similarly, perfect cubes ending with 3 are also complimentary in nature with perfect cubes ending with 7. Which means, if a number is ending with 7, the cube root ends with 3. And when a number ends with 3, the cube root ends with 7.