$The sum of the powers$
$2 + 2^{2} + 2^{3} + 2^{4} + 2^{5} + 2^{6}$
$can be written as$ $= 2^{7} - 1$ .

False

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True

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$\frac{1}{2} + \frac{1}{2^{2}} + \frac{1}{2^{3}} + \frac{1}{2^{4}} + \frac{1}{2^{5}} + \frac{1}{2^{6}} + \frac{1}{2^{7}}$ =___

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Find the median of the following :

$19, 23, 27, 21, 25, 25, 20, 18, 22, 25, 27, 26, 19, 22, 24, 23$

21 +22+23+24+25+26+27+28+29+30+50+14546 - 1

$2 + 2^{2} + 2^{3} + 2^{4} + 2^{5} + 2^{6}$ =___

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The sum of the powers 2+22+23+24+25+26 can be written as =27−1.