L
lequang_clhd


Tính P=ab+bc biết:
(I) $a^2$ + $b^2$ = $2010^2$
(II) $b^2$ + $c^2$ = $2011^2$
(III) $b^2$ = ac
(I) $a^2$ + $b^2$ = $2010^2$
(II) $b^2$ + $c^2$ = $2011^2$
(III) $b^2$ = ac
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