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Catalogs Discussion Forums -> Algebra -> y=(x^2+2x+1)/(x^2-8x+12) what is the range of this function. i am getting (- infinity to -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

the above fraction can be written as 1 +   (10x-11)  

                                                         (x^2-8x+12)


   (10x-11)                                          ........................(1)

(x^2-8x+12)   


=   49/4             9/4      

       x-6              x-2

find the maximum and minimum values of (1) and thn add 1 to it..u'll get the range of the function

Catalogs Discussion Forums -> Analytical Geometry -> 3 dimensional geometry..what is polar co ordinate system -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

The 3-D polar coordinate system or the spherical coordinate system involves the distance from the origin and 2 angles


The position of point P is described as (r, phi ,theta  ),

where r = the distance from the origin (O),

phi  = the horizontal azimuth angle measured on the XY plane from the X axis in the counterclockwise direction,

theta  = the azimuth angle measured from the Z axis.

The relationship between the spherical coordinates and the Cartesian coordinates are


Catalogs Discussion Forums -> Analytical Geometry -> how to find center of circle inscribed in an isosceles triangle? -> Go to message
This Post 7 points    (Olaaa!! Perrrfect answer.   in 2 votes )   [?]

see, the incentre of a triangle is formed by the intersection of angle bisectors of the triangle.

for an isosceles triangle, thus the incentre will lie on the altitude of the triangle drawn from the 3rd angle, to the opposite side...

the othr conditions givvn in the question, will help u determine the exact location of the centre

Catalogs Discussion Forums -> Electricity -> Design the following arithmetic circuits using OPAMP circuits: a) Sum b) Subtraction c) Multiplic -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

for rest of the things, consult this book

 

books.google.co.in/books

Catalogs Discussion Forums -> Electricity -> Design the following arithmetic circuits using OPAMP circuits: a) Sum b) Subtraction c) Multiplic -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Catalogs Discussion Forums -> Differential Calculus -> 5| x + 1| = -10 and explain how to work this out? -> Go to message
This Post 10 points    (Olaaa!! Perrrfect answer.   in 2 votes )   [?]

i guess thr's a typo err out here :D....

so here's just  another way of solving the correct question  :)

Catalogs Discussion Forums -> Inorganic Chemistry -> How many 3 digits number can be formed from the digits 1,2,3,4,5 if repetition is allowed? -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]

three digit no. = a b c

for 1st digit, i.e. a, u have 5 choices

since repetition is allowed, same is for b and c

hence total no of ways = 5^3 = 125

Catalogs Discussion Forums -> Analytical Geometry -> how to solve locus problems -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

just take an arbitrary point (h,k) which follows the required locus. then substitute thi spoint, in the given conditions for the locus, and eliminate any variable parameter.

finally,when u get an equation/relation in (h,k)... substitute, h=x and k=y

u hav the required locus !

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

         an = 10-3n

=> an+1 = 10-3n-3

now d = an+1 -an

           =  - 3

which is a constant value, independent of 'n'.

hence its an AP

Catalogs Discussion Forums -> Algebra -> prove that trace of a matrix A equal to the sum of its eigen values. (A=[aij] -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

any matrix A, with eigen values ai is similar to its jordan form which is an upper triangular matrix

a1    b1   c1

0     a2    c2

0      0     a3

 and since similar matrices have same trace value, the trace of matrix A = sum of the eigen value

 

Catalogs Discussion Forums -> Algebra -> prove that A-KI has the eigen values /\1-/\,....../\n-K and the same eigen vectors as A. (/\1,/\2.. -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

ur question is not clear... can u explain it a little more.

Catalogs Discussion Forums -> Algebra -> if a, b, c are in GP then check whether 1/a,1/b, and 1/c are in GP -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

ofcourse dear....

see,if the common ratio is r, then b=ar and c=ar^2

thus 1/b = 1/ar  and 1/c=1/ar^2

hence they r also in gp, with common ratio 1/r ...

Catalogs Discussion Forums -> Algebra -> if a, b, c are in GP then check whether 1/a,1/b, and 1/c are in GP -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

ofcourse dear....

see,if the common ratio is r, then b=ar and c=ar^2

thus 1/b = 1/ar  and 1/c=1/ar^2

hence they r also in gp, with common ratio 1/r ...

Catalogs Discussion Forums -> Electricity -> links for 'electricity' .. beginners -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

allaboutcircuits.com/vol_1/chpt_10/3.html

utwired.engr.utexas.edu/rgd1/lesson07.cfm

www.eas.asu.edu/~holbert/ece201/ECE201Lect-10.ppt

www.ibiblio.org/kuphaldt/socratic/output/dcmesh.pdf ----- Practice Problems

www.analyzethat.net/78_loop_circuit_analysis.php

powerelectrical.blogspot.com/

Catalogs Discussion Forums -> Lounge -> Expert Party .. -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]

congrats sir ....u deserve it, undoubtedly :)

Catalogs Discussion Forums -> Mechanics -> RatesAssured: Which is better: BIT,Mesra or NIT,Allahabad In all respects...... -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

NIT Allahbad... it will giv u a better tagname !!!

Catalogs Discussion Forums -> Inorganic Chemistry -> Does covalency mean the no atoms attached to the central atom ? -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]

Covalency is the number of electron pairs an atom can share with other atoms

Catalogs Discussion Forums -> Counselling Zone -> Rates assured..my AI rank is 12000 odd..HS MAHARASHTRA..In 2nd round i got nit nagpur metallurgy all -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]

u still hav gud chances to slide up.... however, even NIT-Ngp meta is not bad... infact its gud....so dnt worry even if u dnt get surathkal

gud luck

Catalogs Discussion Forums -> Counselling Zone -> i got 103000 air d 2800 state rank in aieee can i gt admission in reputed college in any part of ind -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]

srry to say, bt u cant get admission in any of the NITs.

Community shelf Community shelf -> there is big game played by nit warangal -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
its totally wrong.... i myself , is a NIT student... nd nthing such happens... at the end of all counsellings... some seats r left vacant.....which r filled thru spot counselling... bt thrs nthing called 'management quota'... cuz NITs rnt private insti...they r under central govt.
 
 
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