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If (f:\mathbb{R}\to\mathbb{R}) and (f(x)=x^2-4), which statement is correct?यदि (f:\mathbb{R}\to\mathbb{R}) और (f(x)=x^2-4) हो तो कौन सा कथन सही है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: It is not one-oneयह एकैकी नहीं है
Step 1: (f(2)=0). Step 2: (f(-2)=0), while (2\neq-2). Step 3: Square-based functions are not one-one on the whole real domain.चरण 1: (f(2)=0) है। चरण 2: (f(-2)=0) है जबकि (2\neq-2)। चरण 3: वर्ग से जुड़े फलन पूरे वास्तविक प्रांत पर एकैकी नहीं रहते।
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