MCQ · কৃষি গুচ্ছ সমন্বিত ভর্তি পরীক্ষা · ২০২৩
f(x) =√(3-x) ফাংশনটির ডোমেন হবে।
- ক[0, 3)
- খ(- ∞, 3]
- গ[3, +∞)
- ঘ(-∞, +∞)
সঠিক উত্তর: খ) (- ∞, 3]
ব্যাখ্যা
3 − x ≥ 0 হতে হবে, অর্থাৎ x ≤ 3; ডোমেন (−∞, 3]।
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