Mukesh Bhakar posted an Question
May 03, 2022 • 02:32 am 30 points
  • IIT JAM
  • Mathematics (MA)

4. the least value of f(x) =2x+,x>0 is (a) 4 (b) 6 (c) 8 (d) 10

4. The least value of f(x) =2x+,X>0 is (A) 4 (B) 6 (C) 8 (D) 10

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  • Anonymous User best-answer

    f'(x)=2-16x^-3 =0 X³=8 x=2 f"(x)= 48x^-4 f"(2)=3>0 f(x) is minimum at x=2 f(2)=4+2=6

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