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If (f:\mathbb{R}\to\mathbb{R}) is defined by (f(x)=x+|x|), what is (f(-5))?यदि (f:\mathbb{R}\to\mathbb{R}) को (f(x)=x+|x|) से परिभाषित किया गया है, तो (f(-5)) क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (0)(0)
Step 1: For (x=-5), (|-5|=5). Step 2: Therefore (f(-5)=-5+5=0). Step 3: In modulus questions, first evaluate (|x|) according to the sign of (x).चरण 1: (x=-5) के लिए (|-5|=5)। चरण 2: इसलिए (f(-5)=-5+5=0)। चरण 3: परिमाण वाले प्रश्नों में पहले चिन्ह के अनुसार (|x|) का मान निकालें।
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