সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
f(x) = -1 for all x > 0. If f(a) = -1 and f(ab) = -1 then b =?
f(x) = -1 for all x > 0. If f(a) = -1 and f(ab) = -1 then b =?
- ক. 1
- খ. 3
- গ. -1
- ঘ. -3
সঠিক উত্তরঃ এখানে সঠিক উত্তর নেই।
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