Class 11 Book Solution from S N Dey in Relation and Function Question No: 2C.1.3
সঠিক উত্তরটি নির্বাচন করো : মনে করো, A = {0, 1, 2, 3, 4} এবং Z হল পূর্ণসংখ্যাসমূহের সেট । যদি \(f : A\rightarrow Z\) অপেক্ষক \(f(x)=x^2-5x+2\) দ্বারা সংজ্ঞাত হয়, তবে নিচের কোনটি 2-এর প্রাগবিম্ব হবে ?
(a) 5 (b) 2-এর প্রাগবিম্ব নেই (c) 1 এবং 4 (d) 0
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