Inverse

Ans=xpi/6
What is wrong in my working?


@ashishdeosingh
well your answer is incorrect . i have done the same as you .
if it is done using tan formula ans is coming different
the problem is range not given

@ayush_nath
if range is not given, i hvae mentioned that it should have been given. so the question is not correclty framed. so my answer is not wrong

@ashishdeosingh
this was today s jee mains question , will grace be given in such doubtful questions?
should we attempt them??

most probably since questions are memory based, the data has been wrongly given.

this is right. numerator has plus sign

@ashishdeosingh
yes i get it know...