III gimnazjum

Matematyka wokół nas 3

a)  (5;+∞) <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/22873/%2BQW4UBBBOeQi1JaiF4KBpw%3D%3D_2d5bdc1997da9b4104b06c9c32c53dc5a2c8e5b39a3d51d2ea35febae8d94c1f.png" width="464" height="74"> b)  (−∞;4&gt; <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/22874/NlZo/f/n0wb4BI%2BcRBUGnA%3D%3D_c0763bd838c83598cd9314810f95d28fd85808aa8bc64420aba2c686a8a99ddb.png" width="464" height="74"> c)  ` <img src="../../../sites/default/files/os181z7c.png" width="464" height="74"> d)  (−∞;−3) <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/22875/N817jZYdxwikdBgCORSxmA%3D%3D_3464ace4ce972f347b84893b1cbac3087b34bacd6468c81b266bd6516b5c0bf2.png" width="464" height="74"> e)  `` <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/22876/3AwWyWh/i8rB5a8lXUyHkg%3D%3D_c8b073c560a9ded3f6c69927facbc4e207d67ef8021d261361d7247fd773609d.png" width="464" height="74"> f)  ` <img src="../../../sites/default/files/os181z7f.png" width="464" height="74"> g)  (−6;2&gt; <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/22877/5e6OVcQgC/iWg60aVDFG2g%3D%3D_7792409c5b77d6c575312042a29989fd49dc5dcd4a57878743eef779feea156c.png" width="464" height="74"> h)  &lt;2;5) <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/22878/JCDSPLfdJQv2AIAidVebvQ%3D%3D_4d12ea6c9548cbd0177019c7543a16fc2da93b0339cc3822f400ce23dcf767ab.png">

Rozwiązanie 1

a)  −4≤x&lt;0 b)  −3≤x≤3

a)  (a,b&gt;,  gdzie  a=−32,b=40 a=−9,b=1

a)  {x:x∈Ri−3≤x≤4}= <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/22886/F8KpTtOX7rzbIycPnN/JaA%3D%3D_d6f6e1782db53b25b50356219a372bb030270730044b74b3bd5a9bbac4f73518.png" width="464" height="74"> b)  `{x:x in RR quad i quad 0<x>`</x>

a)  (4;8)∩(5;8)=(5;8) <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/22890/8optBxGHjGfBYtzqxpI4xw%3D%3D_6ee9d08b388a4073548ed028f97b17228bf0e9a0cb241d90c4dbbac0c6cd98b5.png" width="464" height="74"> b)  ∩(−4;3&gt;=(−4,3&gt;

a)  (4;7)∪(5;8)=(4,8) <img src="https://prod.odrabiamy-assets.pl/uploads/content_image/image/22896/yoIp2lHpm/cgm0ocF3xbIA%3D%3D_af3b1d0ec83d578c298dd5438ad4813d023e419fab885d2f5bfa8c134d4d090f.png" width="464" height="74"> b)  `uu(-7;5)=

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