[nerobi]

there is a few emath question that really dont know how to do. :/

a really simple question,

a) Find the smallest positive integer k such that 360k is a cube number.

Ans: 75

in o level, sometimes they would change cube to square number ?

(i think this kind of question only worth 1mark but 1mark worth a lottttttttttt to me!)

[Iynaux_XY]

360 = 2^3 x 3^2 x 5
To make it to a cube number, make all the terms to the power of 3
k = 3 x 5^2
= 75.
If they asked for sq number just make the terms to the power of 2 or 4 if possible [ x^4 = (x^2)^2 ]