MY CART (5)

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
                   

let f(x)=ax^3 + bx^2 + cx + dsinx.Find d condition dat f(x) is always one-one function.

3 years ago

Share

Answers : (1)

                                        

Dear MAnuj,


 f(x)= ax3+ bx2+ cx+dsinx


d f (x)/dx=3ax^2 + 2bx + c + dcosx <0 (say)


i.e. 3ax^2 + 2bx + c + d<0   (as max. of cosx =1)


and b^2 -4ac<0 (for im roots)


u get : b^2 < 3a(c+d)


but if u hd taken 3ax^2 + 2bx + c + dcosx >0


then take 3ax^2 + 2bx + c - d>0 



Best Of Luck...!!!!


Cracking IIT just got more exciting,It’s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and win by answering queries in the discussion forums. Reward points 5 + 15 for all those who upload their pic and download the ASKIITIANS Toolbar, just a simple  to download the toolbar….


So start the brain storming…. become a leader with Elite Expert League ASKIITIANS


Thanks


Aman Bansal


Askiitian Expert


 

3 years ago

Post Your Answer

find the sum of a infinite geometric series whose first term is the limit of the function f(x)=(tanx-sinx)/(sinx)^3 as x tends to 0 and whose common ratio is the liit of the function...
 
 
for f(x) divide numerator denominaor by x^3.... then use expansion series... I couldn’t understand what g(x) is so pls rewrite that
 
Jayakrishna 22 days ago
Plz 12 question
 
 
((1-cos2x)sin5x)/((x^2)(sin3x) where lim tends to 0 1-cos2x=2(sin^x) sin^x/(x^2)=1 hence, 2(((sin^x)^2)/x^2)*(sin5x/sin3x) 2*(sin5x)/(sin3x) using l’ hopital rule 2*(cos5x)*5)/(cos3x).3)...
 
srishti 25 days ago
 
e^(x^2)-cosx/x^2 using l hopital rule 2xe^2+sinx/2x 4x^2e^x+cosx/2 1/2
 
srishti 25 days ago
​Q . TOTAL NUMBER OF SOLUTIONS OF - 2 X + 3 X + 4 X – 5 X = 0 IS=?
 
 
. when x tends to – infinity the value of expression tends to zero. But we cant say – infinity is a root of equation as – infinity is not any fixed no.
 
Abhishek Singh 3 months ago
 
divide the whole equation with 5^x and you will get ans 1
 
Abhishek Singh 8 months ago
 
according to me it is no solution
 
srikar 9 months ago
how many numbers in form of abcd in which a>b=c
 
 
a>b=c we can take a=1,2,3,4,5,6,7,8,9 for a=1;b=0=c for a=2;b=c=0,1 for a=3;b=c=0,1,2 . . . . . for a=9;b=c=0,1,2,3,4,5,6,7,8 thus total=1+2+3+.....+9=45
 
yaswanth 8 months ago
 
other simple way is there are99 2 digitno. 9 areof a=b form 90/2=45 are in the form a>b 45 are in the form a
 
yaswanth 8 months ago
 
other simple way is there are99 2 digitno. 9 areof a=b form 90/2=45 are in the form a>b 45 are in the form a
 
yaswanth 8 months ago
integrate [sin(x+a)]/[sin(x+b)] a and b are constants
 
 
use over here substitution let x+a=t and further solve plz aprve
 
grenade 2 months ago
 
the then u could use by parts
 
grenade 2 months ago
WHAT IS TH INTEGRATION OF BODY?
 
 
  img
Aziz Alam 9 months ago
 
It is a lame joke. “bo” comes out as a constant and dy is integrated as “y” therefore- integration of body is “boy”
 
RON 9 months ago
 
boy
 
robo 6 months ago
View all Questions »
More Questions On Differential Calculus

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details