Question

$( \frac{8 \sqrt{21} }{5} ) {}^{2}$
vă rog ​

Answer 1

Răspuns:

$( \frac{8 \sqrt{21} }{5} )^{2} = \frac{ {8}^{2} \times 21 }{25} = \frac{64 \times 21}{25} \\ = \frac{1344}{25} = 53.76$