Download the app

Questions  

 Let f(x)=cos1x21+x2 . The range of f is 

a
0,π2
b
−π2,π2
c
−π2,0
d
None of these

detailed solution

Correct option is D

Domain of the given function is R  since   0≤ x21+x2 <1 ⇒ cos-10 ≥ cos-1 x21+x2 >cos-11                                                   since cos-1x  is a  decreasing  function⇒ π2≥ cos-1x21+x2>0 Range of the given function is =( 0,π2]

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

Find the  range of f(x) f(x)=sin1[x] 


phone icon
whats app icon