Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Please solve RD Sharma class 12 chapter 16 Increasing and Decreasing Function Excercise Very Short Answer type Question 6 Maths Textbook Solution.

Please solve RD Sharma class 12 chapter 16 Increasing and Decreasing Function Excercise Very Short Answer type Question 6 Maths Textbook Solution.

Answers (1)

Answer:

The function is increasing if a\epsilon (-\infty ,-1)

Hint:          

If f(x) is increasing, then f'(x)>0

Given:

                f(x)=\sin x-ax+4

Explanation:

It is given that,

                f(x)=\sin x-ax+4

\Rightarrow         f'(x)=\cos x-a

Now,   \cos x-a>0  as  f(x)  is increasing

\Rightarrow         \cos x>a

For a\epsilon (-\infty ,-1),  \cos x>0

Thus, f(x)  is increasing for  a\epsilon (-\infty ,-1)

Posted by

Infoexpert

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

PM Modi's Pariksha Pe Charcha 2025 to be held next month, registrations open till January 14
anam-khan

CBSE Board Exams 2025: Online portal for availing exemptions by CWSN students opens
anam-khan

Board Exams: States agree to equivalence; no question paper ‘jumbling’ from next year, says PARAKH CEO

Latest Question