Join now for JEE/NEET and also prepare for Boards Join now for JEE/NEET and also prepare for Boards. Register Now
Hey there! We receieved your request
Stay Tuned as we are going to contact you within 1 Hour
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
Find the values of a for which the function f (x) = cos x - sin x + ax + b is decreasing Find the values of a for which the function f (x) = cos x - sin x + ax + b is decreasing
f'(x)=-sinx-cosx+a <0the minmum value of -sinx-cosx, occurs at pi/4 = -sqrt(2)=-1.41a-1.41<0a<1.41Sher MohammadB.Tech, IIT Delhi
'(x)=-sinx-cox+aminimum of -sinx-cosx= -sqrt(2)=-1.4f'(x)>a-1.4f'(x)>0a-1.4>=0a belongs to(1.4, inf)Sher MohammadB.tech, IIT Delhi
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -