Function f(x)= 2x -kx +5 is increasing on [ 1, 2 ] then k lies in the interval
Answer (1)
31st Jul, 2020
Hello sharma ,
Here the function is f(x)=2x-kx+5
in the interval [1,2]
First we are equalling the function f(x)=0
After substitute the first interval , then f(1)=2(1)-k(1)+5=0
solve the above equation you will get k=7
After substitute the second interval in the function f(2)= 2(2)-k(2)+5=0
solve the above equation you will get k=9/2 =4.5
the interval for k is [4.5,7]
I hope this will help for you.
THANK YOU.
1 like
Comments (0)
Related Questions
Trending Articles/News
MNLU Mumbai BA LLB and LLM Fee Structure 2025
1 minute ago
IIM CAP Calls 2025: Registration, Call Status, Cut Off
2 minutes ago
DNLU Jabalpur BA LLB and LLM Fee Structure 2025
5 minutes ago
100 Important Vocabulary Words for CLAT Exam 2025
5 minutes ago
