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
1800-5470-145
+91 7353221155
Use Coupon: CART20 and get 20% off on all online Study Material
Complete Your Registration (Step 2 of 2 )
Sit and relax as our customer representative will contact you within 1 business day
OTP to be sent to Change
f(x) = cos x - sin x + ax + bdf/dx = -sin x -cos x + aFor function to be decreasing, df/dx<0Hence, -sinx - cosx +a <0sinx + cosx>aor root(2) sin (x+pi/4) > asin (x + pi/4) > a/root2a/root2< -1a< -root2Hence, the value of a should be (-inf, -root 2) for the function to be decreasing.Thanks & RegardsBharat BajajaskIITians FacultyIIT Delhi
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
Register Yourself for a FREE Demo Class by Top IITians & Medical Experts Today !