[137 x 137 + 137 x 133 + 133 x 133] / [137 x 137 x 137 - 133 x 133 x 133] =?

Question

Accepted Answer

Given exp. = [ a2 + ab + b2 ] / [a3 - b3] where a = 137, b = 133 = 1/(a - b) = 1/(137- 133) =1/4

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