If a + b + c = 6 and ab + bc + ca = 10, then value of a3 + b3 + c3

Question

If a + b + c = 6 and ab + bc + ca = 10, then value of a3 + b3 + c3 - 3abc is :

Options:

A . 36

B . 48

C . 42

D . 40

Answer: Option A

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