Question 94
Solve the following:
Express 2764 and −2764 as powers of a rational number.
∵27=3×3×3=33,(−27)=(−3)×(−3)×(−3)=(−3)3and 64=4×4×4=43∴2764=3343=(34)4 and −2764=(−3)3(4)3 =(−34)3
Which of the following numbers are cubes of rational numbers: (i)2764(ii)125128(iii)0.001331(iv)0.04