Falling Behind in Studies? Join Our Performance Improvement Batch. Enroll For Free
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 )
Live 1-1 coding classes to unleash the creator in your Child
ans given in numerical for in my q ans is (-4, 3-root 21whole divided by 2 ) this bracket in close interval union open interval ( 1, infinity) as find p for which fn f(x) ( root under p+4/1-p - 1) x5-3x + ln5 decreases for all real x in this q, -1 is not part of root -1 is outside 2- find interval in which at least 1 of the pts of local maxm of (cosx)2+ sinx lies
y=(cosx)2+sinxdy/dx=2cosx(-sinx)+cosx put dy/dx=0-2sinxcosx+cosx=0cosx[1-2sinnx]=0=> either cosx=0 or 1-2sinx=0=>x=pie/e or sinx=1/2=>x=pie/2 or pie/6d2y/dx2=-2cos2x-sinxd2y/dx2 at xpie/2=-2cospie-sinpie/2=2-1 =1>0so function is minima at x=pie/2d2y/dx2 at pie/6=-2cospie/3-sinpie/6 =-3/2 <0so function is maxima at pie/6Thanks & RegardsRinkoo GuptaAskIITians Faculty
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -