Question

(1³+2³+3³)-³/²
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Answer 1

$1 ^{3} = 1 \\ 2 ^{3} = 8 \\ 3 ^{3} = 27 \\ \\ putting \: these \: values \: in \: given \: equation \: we \: have \\ \\ {1 + 8 + 27} ^{ - \frac{3}{2} } = 36^{ - \frac{3}{2} } = 6 ^{ - 3} = - 216$ = 1/216