Let f (x) = Sin x – x on [0, π/2], Find Local Maximum And Local Minimum.

Why Kaysons ?

Video lectures

Access over 500+ hours of video lectures 24*7, covering complete syllabus for JEE preparation.

Online Support

Practice over 30000+ questions starting from basic level to JEE advance level.

Live Doubt Clearing Session

Ask your doubts live everyday Join our live doubt clearing session conducted by our experts.

National Mock Tests

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

Organized Learning

Proper planning to complete syllabus is the key to get a decent rank in JEE.

Test Series/Daily assignments

Give tests to analyze your progress and evaluate where you stand in terms of your JEE preparation.

SPEAK TO COUNSELLOR ? CLICK HERE

Question

Let (x) = sin x – x on [0, π/2], find local maximum and local minimum.

Solution

Correct option is

 

Given,                  f (x) = sin x – x   

                           f’(x) = cos x – x                 

                    

    

∴ (x) is decreasing for   

Hence, maximum value of f (x) is at x = 0   

   

And minimum value of (x) is at    

SIMILAR QUESTIONS

Q1

 where 0 <x < π then the interval in which g(x) is decreasing is:   

Q2

Find the critical points for f (x) = (x – 2)2/3 (2x + 1).

Q3

 

Find all the values of a for which the function possess critical points.

 

Q4

 

Using calculus, find the order relation between x and tan-1x when x Ïµ [0, ∞). 

Q5

Using calculus, find the order relation between x and tan-1x when  

Q6

The set of all values of ‘b’ for which the function (x) = (b2 – 3b + 2) (cos2x – sin2x) + (b – 1) x + sin 2 does not possesses stationary points is:

Q7

 

Find the local maximum and local minimum of (x) = x3 + 3x in [–2, 4].

Q8

The function  has a local maximum at x =

Q9

Find the set of critical points of the function  

              

Q10

  

Then find the value of ‘a’ for which (x) has local minimum at x = 2.