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If (f(x)=\sqrt{4-x}+1), what are the domain and range of (f)?यदि (f(x)=\sqrt{4-x}+1) है तो (f) का प्रांत और परिसर क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Domain ((-\infty,4]), range ([1,\infty))प्रांत ((-\infty,4]), परिसर ([1,\infty))
From (4-x\ge 0), (x\le 4), and (\sqrt{4-x}\ge 0), the range is ([1,\infty)). Checking equality at endpoints is important.(4-x\ge 0) से (x\le 4) और (\sqrt{4-x}\ge 0) से परिसर ([1,\infty)) है। सीमा पर बराबरी जांचना जरूरी है।
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