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#1 Re: Help Me ! » Rank correlation - please help - just a doubt » 2012-02-14 06:13:11

well thanks finally smile u helped me n i cud do d sum nicely smile hey u had answered my area problem.. but i had posted anoder reply.. did u check it ? could you please check it and help me out ? area by definite integrals..

#2 Re: Help Me ! » Rank correlation - please help - just a doubt » 2012-02-14 04:42:05

well thanks bob ! smile seriously u made me relieved.. my friend told that 0.55 would be the answer because it states ' common tastes ' ... she told that common implies somewhere near half.. did she have a point ?

#3 Re: Help Me ! » Area using definite integrals ! please help ! » 2012-02-14 04:37:42

hi bob..
thanks a tonne for your useful help.. smile

m facing problem in just one thing. and that's drawing this given graph.. how do i do that ? please help me?

#4 Re: Help Me ! » Rank correlation - please help - just a doubt » 2012-02-14 04:20:27

well, the first pair has 0.55, second one has 0.73, and third one has 0.05..

today i had  a test. i got the same in it..n i judged 0.73 as the correct answer.. but is that correct ?

#6 Help Me ! » Area using definite integrals ! please help ! » 2012-02-14 02:28:37

Ansh Agrawal
Replies: 7

PLEASE HELP ME ON THIS QUESTION. I have no idea what it means to ask and how to draw the curve mentioned in it. If anyone could throw some light on the concept behind this problem, especially the second part, it would be great.

Find the area A bounded by the X-axis, part of the curve y = 1 - (8/x^2) and the ordinate x = 4 and x = 8. If the straight line passing through the point (a,k) and parallel to the Y-axis divides the area A into two parts in the ratio 4:5, find the value of a .

Appreciate your efforts.  Thanks.

#7 Help Me ! » Rank correlation - please help - just a doubt » 2012-02-14 02:26:27

Ansh Agrawal
Replies: 6

I came across this sum :

I have been given the rankings of ten contestants in a beauty contest.. rankings are done by 3 judges.. and their decisional rankings have been given in three columns.. So the rankings have already been given..

They have told this : " Use rank correlation to discuss which pair of judges has the nearest approach to common tastes in beauty

What i did is i paired the 3 judges, so i had 3 pairs.. then i found out the rank correlations for respective pairs.. but m doubtful for the final judgement that we have been asked to make. HOW TO DO THAT ? can anyone help ?

thanks...

#8 Help Me ! » L hospital sum » 2012-02-14 02:25:26

Ansh Agrawal
Replies: 2

i never did limits in 11th grade, but ive done sums from l hospital.. m not familiar with the formulas used in limits.. and because of the power in his sum i think no formula would come in handy.. could anyone please help me through this sum ?

lim of x tends to 0 [ sinx/x ] ^ (1/x^2).

Thanks...

#9 Re: Help Me ! » Integration - Some Problems. Please help. » 2012-02-14 02:24:01

hi..thanks a lot smile could u tell me how do i enable the option of getting notified by email on replies like yours ?

#10 Help Me ! » Integration - Some Problems. Please help. » 2012-01-26 12:25:18

Ansh Agrawal
Replies: 5

Here are some problems I couldn't get through even though I may have done some of them many days back.. Could anyone please help in any of them?

1. Int of (e^x - 1)/(e^x + 1) dx
2. Int ( cox + xsinx ) / x ( x + cosx ) dx
3. Int 1 / x^2 * root of ( 1 - x^2 ) dx

4. Int of ( 1 + sinx ) / sinx ( 1- cosx ) dx

5. Int of 1 / root of ( x + ! ) + root of ( x - 1 ) dx

6. Int of ( 2x + 3 ) /( 3x - 4 ) dx

7. Int of 1/ ( 1 + e ^ x/2 ) dx

8. Int of root of ( x / a - x ) dx

9. Int of ( x - a )/ ( x + a ) dx

10. Int of ( x^2 + 1 ) / { ( x^2 - 1 ) ^ 2 } dx

11. Int of ( 2x - 5 ) * root of ( 2x + 1 ) dx

12. Int of ( x / a + bx ) dx

13. Int of 1 / x * root of ( x^2 - a^2 ) dx

14. Int of ( 2x^2 + 1 ) * sin ^ 2 ( 2x^3 + 3x ) dx

THANKS. 
Ansh Agrawal

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