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53 Views

M.S.E.Cs=interest on mathematics or B.A=crack civils at early age?

Indranand Student Expert 24th Apr, 2019

It depends on how you see your career. Civil Services is very unpredictable. Think this way - what will be your career options if you cannot crack the exams in maximum attempts available. This is not to demotivate you. Interest in mathematics might lead you to some new heights in

205 Views

I failed in mathematics in class 12 examination but I have pretty good marks in PCB combination..Am I eligible to write neet?

Preetham 24th Apr, 2019

Hello aspirant.

To become eligible for NEET examination, need to pass in all the subjects with 50% aggregate for unreserved category and 40% for OBC/SC/ST category .

So you need to pass in all the subjects to become eligible.

For more information about eligibility refer 

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-eligibility-criteria

All the best.

141 Views

Is Mathematics compulsary in DU for BBA?

Gavanksha Student Expert 3rd Jun, 2019

Hello aspirant,  

Yes ut us mandatory to have maths as one subject in 12th class. Delhi University offers and conducts Bachelor's of Management Studies (BMS), Bachelor's of Financial & Investment Analysis(BFIA) and Bachelor's of Business Economics(BBE) , through Joint Admission Test, that are similar to BBA and it is compulsory

250 Views

Let the rank of n individual be 1,2,3,....n and n n-1 ,...1 respectively. Then the rank correlation is

Samridhi Rai 24th Apr, 2019

Ayushi,

As it's said :"Sometimes there doesn’t exist a marked linear relationship between two random variables but a monotonic relation (if one increases, the other also increases or instead, decreases) is clearly noticed. A Pearson’s Correlation Coefficient evaluation, in this case, would give us the strength and direction of the

129 Views

My main subject PCM optional subject biology. I scored biology better than mathematics.In best of five rules biology marks include in grand

Shreya gupta 26th Apr, 2019
Hi Naba Kishore
Firstly the selection for NEET is not merit based . So you score being better in biology or even if it was math wouldn't have mattered . They have their entrance exam selection criteria .
So if you aim for NEET you must have your concepts clear
315 Views

(X+Y) whole square +(Y+Z)whole square +(Z+X)whole square when X+Y+Z=2 and XY +YZ+ ZX= 1

Aaryan Sood 24th Apr, 2019

Hey Aaditya,

Here’s the solution to the asked problem:-

(X+Y)^2 = X^2 + Y^2 +2XY

(Y+X)^2 = Y^2 + Z^2 + 2YZ

(Z+X)^2 = Z^2 + X^2 +2ZX

(X+Y+Z)^2 = X^2 + Y^2 + Z^2 + 2(XY + YZ + ZX)

Use the above equations to calculate the value. 4th

826 Views

By what no. Should 32/3is divided to obtain 20

fayaz Student Expert 23rd Apr, 2019

hello vipul

32/3 should be divided by 8/15 in order to get 20.

let the required number be y.

as given,

32/3 X 1/y = 20.

upon transposing,

32/3 X 1/20 = y

reducing it to the least terms, 

y =8/15.

so, 32/3 should be divided by 8/15 in order

130 Views

Admission for msc mathematics in jnu will require viva voice procedure??

rajaman9300 Student Expert 2nd Jun, 2019

Hello Diksha

Selection Procedure for Admission:

No viva voce examination is held for admission to any programme except for M.Phil and Ph.D. The candidates are admitted on merit on

the basis of their performance in the Computer Based Test (CBT) and the deprivation points added to their score in accordance

973 Views

How to find square root of surds

Anandhu J 23rd Apr, 2019

Finding square roots come in almost every mathematics syllabus from 8th class. Its simple to find the square root of perfect square that is one which does not give a decimal square root. But there are others that are not perfect squares. These are surds.

Square roots of perfect squares

1663 Views

f:Q-Q, defined by f(x)=x^3+1,injective or surjective or both ?

dhameerbhatia31_7970609 Student Expert 23rd Apr, 2019

Hello Rashmi Singh,

f(a)=f(b):

f(a)=a3+1

f(b)=b3+1

a3+1=b3+1

a3=b3 subtract 1 from each side

(a3)1/3=(b3)1/3 take the cubic root of each side

a=b

Therefore, f is injective.


Again, following that helpful answer, solve for x, and then plug into f(x):


y=x3+1

y−1=x3

x=(y−1)13

Now, plug x into f, and check if

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