Doubts-2012 Batch
I have made this page for 2012 batch students to post their doubts from any part of any module of Mathematics.
Please post your comments in the following format if you want me to answer your questions.
<Module Name>, <INE/OSE/Illustration>, <Question Number>
See the following samples:
Quadratic, OSE, 5
Functions, Illustration, 24
Conic, OSE, 34,56,74
But before you post your question, check the list below first. The solution might be already present in the list.
– Manmohan Gupta
(VMC – IITJEE Preparations)
Manmohan's Blog 
Straight Lines, OSE, 27
Inverse trigo OWS Q14
SSE Q8
Functions(in module 7) INE Q14
P & C OWS Q17,26
INE Q23
Differential Calculus – 1 Illustration – 47
( How To solve with LH rule ? )
DC-1, INE E, Qs 17.
If we apply lhd rhd method for x=1, we get lhd=rhd which is not the answer
Inverse Trigo
I-23
P&C
Example 13
INE E-13
DC-1 ,workshop
Q-16,64,11,13,16
DC-1 , INE E Q-8
DC-1 , OSE = 22
INE E – 34 (how to simplify the function? )
Differential Calculus 1 , Workshop, 1,3,17,18,24,34,51,55,57,74,86,98
DC-1, INE-E , Q-13
Bhaiya please ignore my previous comment ..
Please Solve
DC1, Workshop, 17
The rest i have been able to solve
Thanks
bhaiya , in conic section online class on 9 JUNE ,u discussed
OSE -80 CONIC SECTION
in which u said that answer is “none of these ” . but if 3 normals do not exist => the existing one normal will surely have x – coordinate =0 .
so the answer should be zero only …………
plz help
DC-2 ,OSE, 48,11,8.
DC-2, INE-E, 31.
CONIC SCTIONS, OSE, 20.
Bhaiya i cudn’t understand the logic of CIRCLES, OSE, 1.
bhaiya, not able to make the function in single variable where we have to maximize or minimize in the illustrations of DC-2…..
pls help
Sequences and series, AM>=GM type questions in INE- Q.26,27,30,30.
Complex Numbers, Triangle Inequality
bhaiyya
please post a link of the circular permutation recording that you mentioned in the problem solving class.
Hi Bhaiyaa!
I have some doubts reagrding DC-1
Can you please help me with this question – Its fron INE B question 2 which says we have to prove some f(x) continous…
And please can you also give me a bit of help how to deal with questions like Illn 47 with x tending to infinity instead of tending to zero ones?
(I am sorry if this is an incorrrect way of posting questions…I am not that much well versed with this feature, that’s why..)
DC-1, illustration,63
I.C. 1- INE-F: (xi)(xii)
INE-G: 7,34,37,52,54,56
OWS: 12,13,16,24,30,34
I.C. 1 ILL 26
INE-D 11
INE-F 10
INE-G 17,31,35,40,41,43,50,53,59
Integral Calculus-1:
OW-11,36.
binomial theorem INE B Q27
sequences and series: A.M.>G.M. type questions
bhaiya cud u pleasee give the link and password for binomial class-1…..
Quadratic SSE 2, Why is there a need to neglect a solution of ‘a’ as the domain of the function depends on ‘a’.Thus x is dependent on ‘a’ and thus both values of a will satisfy the above condition of obtaining a single root. The value x=9 used for neglecting ‘a’ does not lie in the domain of function. Is there any mistake????
Vectors—
ill-9,14
ill-14:Can we do it from R.H.S to L.H.S.
Ine-b:10
OW;4…
VECTORS
INE-C : 14,17,19,21
Vectors doubts-
INE-A Q-8,9
INE-B Q-5,16
INE-C Q-14,17,21,23
OWS Q-16,24,42
diff. eqn.
ine-f- 34,31,39
o.s.e. 53
sse 20
complex 1
ine A 11,17,21,87
In todays PROPERTIES OF TRIANGLE class,
Bhaiya, if possible please discuss the following:
Properties of Triangle
illustrations: 44, 47
INE-B : 1(xii) , 15, 16, 19, 20
OSE : 6, 10, 22, 35, 42 , 46
SSE : 1, 4 , 7, 8, 10, 11, 12
complex 2 module 3
bhaiya, in today’s class of complex plzz discuss
ine – q 14-18 , q41
ose – q54 , q 56-58 , q61
module-1
trignometry
ose-15
derivation of equation r=4RsinA/2sinB/2sinC/2
ine-D q-6
ine-c q-16
sir please solve this ques .
Q. Find the sum of this series till iiinfinity:-
1+1/3+1.3/3.6+1.3.5/3.6.9+1.3.5.7/3.6.9.12+……… (Ans. under root 3)