248 Views

domain for sin inverse (2x√1-x^2) working rule


Abinaya 20th Aug, 2020
Answer (1)
Jainshahajal 10th Nov, 2020

Hello Aspirant,

I think there domain will be -1<x<1

Since value in sin-1 can only be between -1 and 1, we get the conditions

  1. -1 < x < 1
  2. -1/2 < x√1-x2 < 1/2

Taking case 2, square it. We get x2(1-x2) <1/4

Replace x2 with t. We get t2-t+1/4>0.

The lhs is a square , thus is greater than zero for all t . Therefore for all x .

The intersection of the two ranges gives -1<x<1

I hope this will help you.


Related Questions

CLAT Current Affairs with GK ...
Apply
Stay updated with current affairs & check your preparation with the CLAT General Knowledge Mock Tests Ebook
CLAT English Language Mock Tests
Apply
Free Ebook - CLAT 2025 English Language questions with detailed solutions
ICFAI Business School-IBSAT 2024
Apply
9 IBS Campuses | Scholarships Worth Rs 10 CR
CLAT Legal Reasoning Mock Tests
Apply
Free Ebook - CLAT 2025 legal reasoning questions with detailed solutions
GIBS Business School Bangalor...
Apply
100% Placements with 220+ Companies
Great Lakes PGPM & PGDM 2025
Apply
Admissions Open | Globally Recognized by AACSB (US) & AMBA (UK) | 17.3 LPA Avg. CTC for PGPM 2024
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books