1
WB JEE 2017
MCQ (Single Correct Answer)
+2
-0.5
Change Language
The value of K in order that f(x) = sin x $$-$$ cos x $$-$$ kx + 5 decreases for all positive real values of x is given by
A
K < 1
B
K $$ \ge $$ 1
C
K > $$\sqrt 2$$
D
K < $$\sqrt 2$$
WB JEE Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12