MCQ · চট্টগ্রাম প্রকৌশল ও প্রযুক্তি বিশ্ববিদ্যালয় (চুয়েট) ভর্তি পরীক্ষা · ২০১৩
(a+b+c)(b+c−a)=3bc হলে sin A এর মান হবে:
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এই বিষয়ের আরও প্রশ্ন
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