উলম্ব রেখার ঢাল কত?
A.
B. 1
C. -1
D. undefined
JnUUnit-Cসাধারণ গণিতস্থানাঙ্ক জ্যামিতিসরলরেখার ঢাল ও সমীকরণ (Topic Practice)JnU - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
D.
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Explanation:
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