( 1,3 \times 0,5 - \frac { 1 } { 20 } ) ^ { - 2 } =
Evaluate
\frac{25}{9}\approx 2,777777778
Factor
\frac{5 ^ {2}}{3 ^ {2}} = 2\frac{7}{9} = 2.7777777777777777
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\left(0,65-\frac{1}{20}\right)^{-2}
Multiply 1,3 and 0,5 to get 0,65.
\left(\frac{3}{5}\right)^{-2}
Subtract \frac{1}{20} from 0,65 to get \frac{3}{5}.
\frac{25}{9}
Calculate \frac{3}{5} to the power of -2 and get \frac{25}{9}.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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