Q. 125.0( 1 Vote )

Write the interva

Answer :

f(x) = Sin x + Cos x, x ϵ [0, ]


f’(x) = Cos x – Sin x


For, f(x) to be increasing, it must have


f’(x) > 0


Cos x – Sin x > 0


Sin x < Cos x



tan x < 1


tan x < tan


x ϵ


Hence, the required interval is x ϵ .


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Find the intervalRD Sharma - Volume 1

Find the intervalRD Sharma - Volume 1

Find the intervalRD Sharma - Volume 1

Find the intervalRD Sharma - Volume 1

Find the intervalRD Sharma - Volume 1

Find the intervalRD Sharma - Volume 1

Show that the altMathematics - Board Papers

Find the intervalRD Sharma - Volume 1

Find the intervalRD Sharma - Volume 1

Find the intervalRD Sharma - Volume 1