Exactly....In class 10 question 49 should be deleted...Please email it to unified council at exam@unifiedcouncil.com I have already sent mails to them... You can also call them...

Q49 is a problem for all the classes...this question has already been deleted/changed for classes 7,8,9;P.....Only for class 10 it hasn't been changed..

Please solve this question... f(x) is a polynomial inx. f(2)=3,f(3)=2, what is the remainder when f(x) is divided by (x-2)(x-3), what is the remainder....

see, whenever we divide by a quadratic expression i.e of degree2 (like in this case)..we get a remainder either of degree 1(in the form of ax+b) or a constant term

dividend=divisor*quotient+remainder let the quotient be q(x) and rem be ax+b

f(x)=(x-2)(x-3)*q(x)+(ax+b)

Put x=2;

f(2)=(2-2)(3-2)*q(2)+a*2+b 2a+b=3..........(1)

put x=3 f(3)=(2-3)(3-3)*q(3)+a*3+b 3a+b=2........(2)

victory at last.....UNIFIED COUNCIL HAS DELETED Q 49 IN CLASS 10 thanks to the e-mail bombarders.. but the answer sheets checked in this period of 4 days( from 14-18) will suffer...as they aren't going to check again....are they?/

## 15 comments:

what's the expected cutoff for 10th class

New keys are gud in respet to class 9th. The answers for 10th,25th and 49 th qns. have been changed which is welcomable

getting 88 in class 9? Poor score :-(

these people still havent deleted the 49th question in class 10th....

i am getting 93 (only if i consider it to be a bonus)

what should i do now??

Exactly....In class 10 question 49 should be deleted...Please email it to unified council at

exam@unifiedcouncil.com

I have already sent mails to them...

You can also call them...

Q49 is a problem for all the classes...this question has already been deleted/changed for classes 7,8,9;P.....Only for class 10 it hasn't been changed..

Getting 93 in Class 9, anyone getting more??????????

93(Class 8th)

BOSS

Please solve this question...

f(x) is a polynomial inx. f(2)=3,f(3)=2, what is the remainder when f(x) is divided by (x-2)(x-3), what is the remainder....

man......they still havent changed it .....i have sent a dozen mails to them.....owner of the blog pls do something

SOLUTION:

we are dividing f(x) by (x-2)(x-3)

i.e x^2 -5x+6

see, whenever we divide by a quadratic expression i.e of degree2

(like in this case)..we get a remainder either of degree 1(in the form of ax+b) or a constant term

dividend=divisor*quotient+remainder

let the quotient be q(x) and rem be ax+b

f(x)=(x-2)(x-3)*q(x)+(ax+b)

Put x=2;

f(2)=(2-2)(3-2)*q(2)+a*2+b

2a+b=3..........(1)

put x=3

f(3)=(2-3)(3-3)*q(3)+a*3+b

3a+b=2........(2)

by (1) and (2)...

a=-1

b=5

remainder = ax+b... (-x+5)

or 5-x ANS

hope u understood

Yay!! 95 In Class 9.

Yo Yo Honey Singh

Got

23/25 maths

25/25 physics

19/20 bio

18/20 chem

10/10 GK

Yo yo honey singh

@ shivam ..... thanks...I got it....

pls do something about q49....class 10

victory at last.....UNIFIED COUNCIL HAS DELETED Q 49 IN CLASS 10

thanks to the e-mail bombarders..

but the answer sheets checked in this period of 4 days( from 14-18) will suffer...as they aren't going to check again....are they?/

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