ISI 2011 SAMPLE PAPER ME 1 DISCUSSIONS

[ravian]

Hi Everybody,

I solved the ME 1 paper. Here are my answers

1) not done
2) d
3) b
4) d
5) c
6) d
7) d
8) d
9) d
10) a
11) d
12) c
13) not done
14) d
15) c
16) not done
17) d
18) d
19) not done
20) b
21) d
22) c
23) a
24) not done
25) b
26) a
27) d
28) not done
29) c
30) not done

plz let me know your answers..:)

[rajib]

Q 4. f(x)=max{1,x,x^2}.....draw d graph of f(x)=1,f(x)=x,f(x)=x^2...find point of intersections
    as d fn is max, so exclude lover portion of d point of intersections of d graph....will find discontinuity...

Q 1. take 1st part is x. so total fn is (x^1/2)^2 +(10/x^1/2)^2....

[rajib]

Q 10. ans is 2.
   for any identical x,y d given eqn is satisfied. And if f is =0 then also it is hold.

[shali]

hi..
 ans for the 9th question should be 90..coz we consider 3 cases 1) x included 2) y included
 3)x and y both excluded.


n plz explain 8th questn i hav a confusion

[shali]

hi..
 ans for the 9th question should be 90..coz we consider 3 cases 1) x included 2) y included
 3)x and y both excluded.


n plz explain 8th questn i hav a confusion

[rajib]

the ans will be no point of intersection..

[Sahib]

how do v go about questions like the 10th one?
Wat shud b da algorithm in general?
N ne particular math buk u guys recommend except RD 4 ISI?

[Ashima Mathur]

Hi,

How should I go about question 3?

[sachin]

h'(x)= f'(g(x))g'(x)=(-)(+)= (-) so always decreasing.
h(0)=0
>>>>h(x)< 0 for all x
for x<1
>>>>h(x)>h(1) for all x less than 1.....since f is decreasing
>>>>h(x)-h(1)>0 for all than 1

but for x>1
>>>>>h(x)<h(1)
>>>>>h(x)-h(1)<0

hence..a is ans..
note: add equality sign to all inequality...