Questions
detailed solution
Correct option is C
Perimeter =2(2α+2cos2α) since if x=π4+α⇒y=2 sin2π4+α=2 cos 2αP=4(α+cos2α)dPdα=4(1−2sin2α)=0sin2α=122α=π6,5π6d2Pdα2=−16cos2α for maximum α=π12 if 2α=π6⇒d2Pdα2=−16cosπ6=-83<0 Area =(2α)(2cos2α)=π6×2×32=π23Similar Questions
If now match the following
Column I | Column II |
A. The number of critical points of f(x) in [-2, 2] is | P. 1 |
B. The length of the longest interval in which f(x) satisfies Rolle's theorem is | Q. 2 |
C.The number of values of ‘c’ of Rolle's Mean value theorem | R. 3 |
D. The maximum value of f(x) in [-2, 2] is | S. 0 |
Get your all doubts cleared from
Sri Chaitanya experts
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests