Math Chapter Wise question with answer

Q01 Let f: R → → →R be defined by f(x) = x2 + 1 Then pre-image of 17 is– English · SECTION B PGT TIER-I 31.11.2014 Q02 Which of the following is an open set? English · UP TGT 2021 Q03 What is the representation of an open disk D(x,y) of radius r centered at origin in R2? English · DSSSB TGT 04-09-2021 Shift-I (Male) Q04 If A is an open set and B is a closed set, then B – A is English · UP TGT-2016 (08-03-2019) Q05 The union of any collection of open set– English · JDD-75-PGT TIER II-X-15 28.06.2015 Q06 The set of points in the interval [2, 4] and in interval (1, 2) are English · UPPSC GDC 2021