RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 17. Increasing and Decreasing Functions

Subject: Maths - Class 12th

Q. No. 7 of MCQ

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7

Mark the correct alternative in the following:

The function is of the following types:


Formula:- (i)if f(-x)=f(x) then function is even


(ii) if f(-x)=-f(x) then function is odd


(iii) The necessary and sufficient condition for differentiable function defined on (a,b) to be strictly increasing on (a,b) is that f’(x)>0 for all x(a,b)


Given:-


f(x)=)



f(x)>0


hence function is increasing function


f(-x)=-log()


f(-x)=-f(x) is odd function

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