Question

4. Find the cube roots of the following numbers, using estimation:

(a)46656

(b) 1331

please can you give full explanation please ​

Answer 1

Cube root is the inverse process of calculating the cube of a number. It is denoted by the symbol ‘∛’. Let us see some examples here now.

To find the cube root of a number 27, we want a number which when multiplied thrice with itself shall give 27. We can write,

27 = 3 × 3× 3 = 33

Taking cubic root on both the sides;

or ∛27 = ∛33

Therefore, the cube-root of 27 is 3.

Please note that we will only consider the positive values cube roots of the natural numbers.

This is how u can do this

Answer 2

Answer:

1) 46656= 2×2×2×2×2×2×3×3×3×3×3×3

taking cube root on both side

46656=2×2×3×3

46656= 36.

2) The cube root of 1331=

cube root of 11×11×11=

11

Hope it helps u

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