FallOutBlink FallOutBlink

30-11-2016
Mathematics

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Evaluate 1/x^-2 for x = 7.

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bhtaylor bhtaylor

30-11-2016

The negative exponent means you take the reciprocal, so it changes to x^2. Plug in 7, and you get 49

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purpleflapjack purpleflapjack

30-11-2016

1/x^-2 for x = 7
1/(7)^-2
1/(1/(7)^2)
1/(1/49)
49

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