Question

6. Without actually calculate the cubes, find the value of each of the following:
by using identities ( with explanation )
1 . (1.5)^3-(0.9)^3-(0.6)^3​

Answer 1

Answer:

2.43

Step-by-step explanation:

a-b-c=0

a³-b³-c³=3abc

1.5-0.9-0.6=0

1.5³-0.9³-0.6³=3×1.5×0.9×0.6

=2.43