Toán Lớp 7: Giúp mình vs
Tìm GTLN : M = |x-2,3|-0,5
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Toán Lớp 7: Giúp mình vs
Tìm GTLN : M = |x-2,3|-0,5
Comments ( 2 )
$|x-2,3|≥0∀x$
$⇒|x-2,3|-0,5≥-0,5∀x$
Dấu $”=”$ xảy ra khi
$⇔x=2,3$
Vậy $MinM=-0,5⇔x=2,3$