Question
Download Solution PDFধরা যাক, f : R → R-কে c ∈ R এবং f(c) = 0-তে পার্থক্য করা যায়। যদি g(x) = |f(x)| হয়, তাহলে x = c, g কত?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFযেহেতু, f(c) = 0
অতএব,
এবং
⇒ g'(c) = f'(c) = -f'(c)
= f'(c) + f'(c)
⇒ 2f'(c) = 0
⇒ f'(c) = 0
সুতরাং, f'(c) = 0 হলে g(x) পার্থক্যযোগ্য
Last updated on Jul 21, 2025
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