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Why is (f:R\to R), (f(x)=|x+2|), not one-one?फलन (f:R\to R), (f(x)=|x+2|) एक-एकी क्यों नहीं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Because (f(-3)=f(-1))क्योंकि (f(-3)=f(-1))
Step 1: (f(-3)=|-3+2|=1). Step 2: (f(-1)=|-1+2|=1). Step 3: Two different inputs have the same image, so the function is not one-one.चरण 1: (f(-3)=|-3+2|=1)। चरण 2: (f(-1)=|-1+2|=1)। चरण 3: दो अलग आगतों की छवि समान है, इसलिए फलन एक-एकी नहीं है।
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