1) (X-X1)(X-X2)+(X-X2)(X-X3)+(X-X3)(X-X4)

Re:IIT sample paper qn --

IS ans 13/3

whats the password

differentiate both sides and equate the coefficients.

is it b ,c

anyone ???????

1) (X-X1)(X-X2)+(X-X2)(X-X3)+(X-X3)(X-X4)

+(X-X4)(X-X5)=0 have equal roots when

x2=x4=k; find max value of 1.x1x3x5

2.x1**x5.

2) find

two roots be x1,x2;

x1+x2=-b/a;

x1x2=c/a;

= -4x1x2;

on substuting ans

=(4b^2-4ac)/a^2;

using 2b=a+c; we get x1 & x2;

seperate two terms , divide in the second

case ,apply limits , first case as n-> first term->0

second term u get (cosx)/3;

check if i am wrong !!!

correct me if i am wrong.

use newtons formula

u get

g'(x)=cos^4(x)

now integrate ,constant c=0 , use newtons formula

u get

g(x)=integral(cos^4(x))+c=0;

cos^4x=cos^2x * cos^2x;

replace 1 cos^2x by sin^2x;

u get g(x);

replace x by x+pi; u get the answer.

hope it is useful.rate me if it is correct!!!

a man approaches a vertical plane at speed 2 m/s.at what rate does he approach his image?

anyone ???

where can i get cbse 2008 outside delhi question paper ?

two blocks A and B of mass 10 and 20 kg resp. are placed as shown.Coefficient of friction

is it +R,-R,+I,-I

anyone???

explain me acidy & basicity ;how inductive,resonance effect plays a role in it?

OPTION IS B.

SP3 - SP -SP - SP3

CH₃-C

C-CH₃

_{RATE ME IF IT'S USEFUL}

1) (X-X1)(X-X2)+(X-X2)(X-X3)+(X-X3)(X-X4)

+(X-X4)(X-X5)=0 have equal roots when

x2=x4=k; find max value of 1.x1x3x5

2.x1**x5.

2) find

two roots be x1,x2;

x1+x2=-b/a;

x1x2=c/a;

= -4x1x2;

seperate two terms , divide in the second

case ,apply limits , first case as n-> first term->0

second term u get (cosx)/3;

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor

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1) (X-X1)(X-X2)+(X-X2)(X-X3)+(X-X3)(X-X4)

+(X-X4)(X-X5)=0 have equal roots when

x2=x4=k; find max value of 1.x1*x3*x5

2.x1**x5.

2) find

two roots be x1,x2;

x1+x2=-b/a;

x1x2=c/a;

= -4x1x2;

seperate two terms , divide in the second

case ,apply limits , first case as n-> first term->0

second term u get (cosx)/3;

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor

@ INR 1,995/-

For Quick Info

x2=x4=k; find max value of 1.x1x3x5