Use Exponent Law

Calculus Level pending

What is 2 3 2 3 2^3 - 2^{-3} ?

8/63 63/8 56/63 63/56

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1 solution

2^3=8 2^-3= 1 2 3 \frac{1}{2^3} = 1 8 \frac{1}{8} Therefore, (2^3)-(2^-3)= 8- 1 8 \frac{1}{8} =7 7 56 \frac{7}{56} = 63 56 \frac{63}{56}

7+7/56=(7(56)+7)/56=a lot more than 63/56...

Henry Lembeck - 4 years, 9 months ago

8 - 1/8 = 64/8 -1/8 = 63/8

John Crocker - 4 years, 9 months ago

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