3yup u r rite da but the ans for the last qn is c da, i am also getting b da ,
17 Answers
3
33[ 1 ] for [1]
without spaces..
[ 2 ] for [2]
[ 3 ] [3]...
and so on...
33f(x)=x2 satisfies the given condition so it got to be it... also this is not multiple correct..[3]
and as far as Q3 is concerned... no of soln has to even....
(unless f(x) is different.. but then also it should be 2 as this is not multiple correct..)
33me also guessed that... but wait if i can think of something different...
3how did u get f(x)=x2 abhi. i have made a guess dat f(x)=x2.can u give me the proof da.
3i also thot like this ani when i bought this magazine at first.
but it is the only magazine which gives practice paper for IITjee atleast two in every issues and atleast one AIEEE practice paper in one of three issues .The three issues are PHYSICS FOR U ,CHEMISTRY TODAY, MATHEMATICS TODAY.And also we can get olympaid pbms for maths,physics, and chemistry respectively in every issues and we can get almost all the practise paper for various competitive exams da if we are a subscriber for a year,Of all the most important one is the AIEEE study material is available in the magazines da
3358.
a=4
f(x)=x2
59.
n n
Σ f(r)nCr = Σ r2 nCr
r=1 r=1
=n2n-1+n(n-1)2n-2
60. 2 solns of 2x2=ex...