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Catalogs Discussion Forums -> Trignometry -> if |z-1|=1 then arg(z) is -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
|z-1|=1 is a circle in Argand plane with unit radius and centre (1,0) which touches the y-axis at origin. arg(z) will be different for different points on the circle.
Catalogs Discussion Forums -> Counselling Zone -> plz post some tips and tricks to solve questions in iit-jee -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
  • Start attempting the question paper only after reading the instructions given on it very carefully.
  • While attempting questions, go on segregating them by the A, B, C method A :These questions are from topics that you have prepared well, and you can clearly comprehend the meaning of these questions. You have done questions containing similar concept earlier and you are confident that you will be able to solve these. B :You know you can solve these questions but they are time-consuming, nevertheless you are confident you will be able to crack them when you come back to them. These questions should be attempted in the second round of question attempting, i.e. when you have solved all questions marked with a B. C :You don't know head or tail of these questions and you should not waste time attempting them.
  • Attempting to solve all questions in haste increases the chances of error. It is better to solve slightly fewer questions faultlessly.
  • Never attempt two questions at the same time. Concentrate on one question at a time.
  • Carry out all rough work only in the space given in the paper.
  • If you need a diagram to understand questions in say physics or coordinate geometry etc., do make one.
  • Use the value of constants given in the paper in solving a numerical. If the value is not mentioned, use the one you remember.
  • Give all three subjects equal time - i.e. 50 minutes each for physics, chemistry and mathematics.
  • While attempting the answers, do not shade the answer key immediately. Instead, tick your response with a pencil 4 on the answer key.
  • Keep marking questions with A, B, C in the first round of solving the paper. All questions should be segregated into one of these three categories. This saves valuable time later.
  • Fill out the answer key 30 minutes before final time. Fill out the responses to questions attempted after this directly in the answer key.
Catalogs Discussion Forums -> Thermal Physics -> what is temperature gradient? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
The rate of change of temperature with displacement in a given direction from a given reference point.
Catalogs Discussion Forums -> Coaching Institutes & Course Material -> what are the changes in iit 2013 exam -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
It is unknown, it may have an aptitude test. Currently stick to the basics of your current syllabus.
Catalogs Discussion Forums -> About IITs and JEE -> hello sir i have not done well enough in 11 class ,sir plz tell me whether working very hard in 12 c -> Go to message
This Post 10 points    (Olaaa!! Perrrfect answer.   in 2 votes )   [?]
Of course you can. But from now onwards you need to be sincere. Study in detail the topics of 12th and take out sometime in parallel to go through the basics of topics of 11th. Make a time table and stick to it.
Catalogs Discussion Forums -> Trignometry -> reduce equation of line 3x-4y+4=0 and 2x+4y-5=0 to the normal form and hence find which l -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]

 Normal forms are 

Catalogs Discussion Forums -> Analytical Geometry -> is 184 a term of the sequence 3,7,11...? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
The terms of the series are all odd. 184 being even can never be a part of this series.
Catalogs Discussion Forums -> General Knowledge -> what is the full form of STD in medical languge -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
Its sexually transmitted disease.
Catalogs Discussion Forums -> Optics -> unit of refractive index -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
Refractive index is the ratio of speed of light in vacuum to that in the subject medium. Hence it is a dimensionless quantity and has no unit.
Catalogs Discussion Forums -> General Physics -> 5 1 ohm resistors are given.how can we arrangethem inorder to get the resistance 3.5 ohm -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
Connect two resistors in parallel and then connect this combination with three other resistors in series.
Catalogs Discussion Forums -> Counselling Zone -> hi sir i m jothi from hosur. i need to attend the iit examination any way is there to atte -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

please give details about your querie

Catalogs Discussion Forums -> Counselling Zone -> which topics are impt. for medical entrance? -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

just go through arihant publication book for medical enterance examintaion it has complete details about each subject .

Catalogs Discussion Forums -> Computer Science -> Suggest Me -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

First of all congratulation. you have to be focused on your further studies work hard so that you can achieve a seat in IIT from where u can chose computer science as your stream and enhance your skills.

Catalogs Discussion Forums -> Differential Calculus -> integral of cosec^3 -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

 

Back substitute y to get the answer

Catalogs Discussion Forums -> Differential Calculus -> integral of sinX -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
Its integral is -cosx + c. This is a standard and needs to be remembered.
Catalogs Discussion Forums -> Physical Chemistry -> Most electronegative element in periodic table -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
In general, electronegativity increases on passing from left to right along a period, and decreases on descending a group. Hence, fluorine is undoubtedly the most electronegative of the elements
Catalogs Discussion Forums -> Differential Calculus -> derrivative -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Let   x/(x-1)(2x-3) = 3/(2x-3) - 1/(x-1)

Its derivative is -6/(2x-3)^2 + 1/(x-1)^2

Catalogs Discussion Forums -> Integral Calculus -> Integration of arcCot(x^2+x+1) -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Now use by parts for arccot :

Subtract these two to get the final answer

Catalogs Discussion Forums -> Physical Chemistry -> chemistry -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
The properties of individual elements and when they combine to form compounds are totally different.
Catalogs Discussion Forums -> Differential Calculus -> determine extreme value of a^2cos^x+b^2sin^x.show further that if a^2>b^2,then a^2 is maximum and b^ -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

 

If a^2 > b^2 then maximum value occurs at sinx=0 which is a^2 and minimum value occurs at sinx=1 which is b^2.

Similarly for b^2 > a^2, max. value is b^2 and min. value is a^2

Therefore maximum value = max(a^2,b^2)  and  minimum value = min(a^2,b^2)

 
 
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