If a = 9.6, b = 4.44 and c = 5.16, then the value of $a^3 − b^3 − c^3 − 3abc$ is:
Answer & explanation
Correct answer: option 1
a = 9.6, b = 4.44 and c = 5.16
= According to the question
= a3 – b3 – c3 – 3abc = (a – b – c )(a2 + b2 + c2 – ab – bc – ac)
Now check if a - b - c = 0 then the value of$a^3 − b^3 − c^3 − 3abc$ will be equal to 0
a = 9.6, b = 4.44 and c = 5.16
9.6 - 4.44 - 5.16 = 0
So the value of $a^3 − b^3 − c^3 − 3abc$ = 0