ফাংশন -এর x=2 বিন্দুতে f(x)- এর সর্বনিন্ম মান হবে , কারণ__
A. f"(2)<0
B. f" (2)>0
C. f"(2) =0
D. f'(2)=0
সঠিক উত্তরঃ
B.
f" (2)>0
Explanation:
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