Question:If` a = 1.2, b = 2.1` and `c = - 3.3` then the value of` (a^3 + b^3 + c^3 - c abc) is : 

A 1 
B 2 
C 3 
D 0 

+ Answer
D 

+ Explanation
`a + b + c = 1.2 + 2.1 - 3.3 = 0`

`=>a^3 + b^3 + c^3 `

`= 3abc => a^3 + b^3 + c^3 - 3abc = 0`

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Irin Moni

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