Hi , Guys

HI

Wednesday, March 23, 2016

How to find maxima and minima at Given Point

Hey there
Now I m talk u about tricks of maxima and minima at a given point.

Let we are interested to find maxima or minima for f(x). ie ..f(x) = ax²+bx+c
at a point x= a
Solution --

1-First differentiate it.
We obtained.
I.e.. 2ax+b
2- now put x= a
If it is +ve then maxima , -ve then minima, if zero
3- differentiate again then put x=a
If positive then minima or negative then maxima.
If zero .
4 similarly differentiate till u get non - zero value after putting x=a

Then
If u obtained  non-zero at nth derivative

If n is odd -
     Obtained positive - maxima
                     Negative - minima

If n is even-
     Obtained positive - minima
                     Negative - maxima

I hope u like this post for any problem comment down or mail at given e-mail .

We are legion.

Trick to Find "BOND ORDER" in seconds

Hey welcome back with my new post ,
Today I talk u about "His to find bond order in second  ".

Now have to mugg up this table.

-Let no of electron is 8 then bond order is 0.
-  for 9 - 0.5
- for 10- 1
- for 11 -1.5
-  12 -2.0
-  13-2.5
-  14-3.0
-  15-2.5
-  16-3.0
-  17-1.5
-  18-1.0
-  19-0.5
-   20- 0

Note - Here 8-20 is no. Of electron
and 0-3.0 is bond order.

I think u like this as soon I upload a table on this.

Below down a photo of energy order to fill electron. I hope u studied that in class 11th.

We are legion.

Friday, March 18, 2016

How to prepare for JEE- MAIN

Firstly revise chapter's of 11th class as in order ( if u don't have time more than 15 days then learn the chapter given below )

1 - chemical bonding
2 - GOC 1-2 both
3 - Gaseous state
4 - Atomic structure

Physics
1 - RBD ( Pure rolling , torque , conservation of rotation momentum is  main)
2- Sound wave ( Doppler effect )
3- String wave
4- SHM
5- Thermodynamic

Math
1- straight line
2 - circle
3- conics
4- Trigno ( if not know about it , then do not revise , it takes many practice of days .
5- Sets and relation ( 1-2 questions compulsory aate hai )
6 - Statistics ( ungrouped data type )

From 12th class

1- ORM 1-4
2- CARBONYL COMPOUND
3- SN1 - SN2 , E1,E2
4- Steriochemistry
5 - biomolecules

Inorganic
1- p- block
2- coordination compound
3- metallurgy

Physical chemistry
1 - kinetic
2- Qualitative property

Physics
1-Current electricity
2-Modern physics 1-2
3- Emf ,emi ,  ( earth megnetism main )
4- Geometrical optics ( microscope main )

Math
1- Definate integration
2- Vector
3- Normal tangent
4- Application of Derivative ( not on rate related )
5 - Function
6 - differential eq. (One easy question )

Best of luck
      Only revise foumule and last year questions .
Avoid deep study.

Monday, March 7, 2016

WANT FREE COACHING OF IIT -JEE ,AIIMS (Dakshana Foundation )

All the students of class 12th inform that Dakshana foundation conducting a course for competitive exam like IIT, nit AIIMS, means for both Medical and non medical students.

Form is for those student who presently in 12th class.
Course is conducting in Just after 12th.

Those who want to interested in this exam  , please fill the form .
Link is given below--
apply.gurudakshana.org

Note - THIS FORM IS APPLICABLE FOR BOTH , NAVODAYAN AND NON - NAVODAYAN .

FOR MORE DETAIL - Visit Dakshana's official  website.

Comment down for any enquiry.
Thank u

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