\frac { 7 } { 8 } \text { av } 56 kr
Evaluate
49akrv
Differentiate w.r.t. a
49krv
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\frac{7\times 56}{8}avkr
Express \frac{7}{8}\times 56 as a single fraction.
\frac{392}{8}avkr
Multiply 7 and 56 to get 392.
49avkr
Divide 392 by 8 to get 49.
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