Multiple Choice Questions on What is the nature of the given function f x 2 x 5 ........ for NDA Exam Preparation

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Multiple Choice Questions

What is the nature of the given function f x 2 x 5 ........

Mathematics (NDA) Diffrentiation
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What is the nature of the given function f(x)=  2/x  + 5 ?

Increasing

Incorrect Answer

Decreasing

Incorrect Answer

Strictly decreasing

Correct Answer

None of these

Incorrect Answer
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Explanation:

f(x)=  2/x  +5 

df(x)/dx  =2  (- x-2)  +0 

=  -2/x2

  X2  >0   x   ≠  0

F’(x)<0

Function strictly decreasing

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