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Mathematics 4 Online
OpenStudy (anonymous):

Evaluate x^-2 for x = -3. @kc_kennylau

OpenStudy (anonymous):

this is the same problem as earlier but its negative

OpenStudy (kc_kennylau):

\[\Large(-3)^{-2}=\frac1{(-3)^2}=\frac1{3^2}=\frac19\]

OpenStudy (anonymous):

oh so it the same thing........thanks

OpenStudy (kc_kennylau):

coz the power is even, so negative same as positive

OpenStudy (anonymous):

yeh yeh thanks

OpenStudy (kc_kennylau):

no problem :)

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