Question

(1/3)^-2+(1/4)^-2+(1/5)^-2-(1/6)^-2​

Answer 1

(1/3)^-2+(1/4)^-2+(1/5)^-2-(1/6)^-2 =14

Answer 2

Answer:

$( \frac{1}{3} )^{ - 2} + (\frac{1}{4}) ^{ - 2} + (\frac{1}{5} )^{ - 2} - ( \frac{1}{6} )^{ - 2} \\ \\ \\ = {3}^{2} + {4}^{2} + {5}^{2} - {6}^{2} \\ \\ = 9 + 16 + 25 - 36 \\ \\ = 50 - 36 \\ \\ = 14$

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