Waht happends to the fcube fo a number if the unmber is multiplied by (i) 3 ? (ii) 4 ? (iii) 5 ?
Find the smallest number by which each of the following numbers must be multiplied to obtain a perfect cube.
(i) 243
(ii) 256
(iii) 72
(iv) 675
(v) 100
What happens if a vector is multiplied by the number 2?