Discussion :: Decimal Fraction
- The value of [(0.43)3 + (1.47)3 + (1.1)3 - 3*0.43*1.47*1.1]/ [(0.43) 2 + (1.47) 2+ (1.1) 2 - 0.43*1.43 - 0.43*1.1 - 1.47*1.1] is
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Answer : Option D
Explanation :
We know that [a3 + b3 + c3 - 3abc]/ [a 2 + b 2 + c 2 -ab- bc-ca] = [a+b+c]
Now, compare the given expression with the formula, we get
a = 0.43, b = 1.47, and c = 1.1
So the required value = a + b + c = 0.43 + 1.47 + 1.1 = 3.
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