Edu Station

13/12/2023

27/11/2023

25/11/2014

Hey guys there is a good news for you. Though we have lots of brilliant teachers , we are offering a new way to provide all what we know by offering home tutors from our institute. Now if anybody cannot join our classes pls dont be upset our classes will go to your place. Dont hesitste to call or sms

13/10/2014

Hello students
If u guys need any notes pls dont hesitate to ask for it. We are here to help u guys in any ways.

01/10/2014

29/09/2014

EDU STATION - Where train leads to success.....

25/09/2014

some important notes on Binary

24/09/2014

Hey guys we are starting Computer classes with CIE syllabus 2015..Those who are interested please contact soon.
We have the best teacher to attend the class.
Guaranteed syllabus completion..

Don't be late Hurry we don't have much time left.

22/09/2014

How to prove trigonometry Identities

Usually start with the left hand side or whichever side which is more complicated.
When given trigo functions in the form of sec, cosec or cot x , it is advisable to change it to basic trigo functions like sin, cos, tan
When question involves power (especially square power), formulas should be considered.
Have the END in mind before you begin i.e if the end result involves only sin, your working should eventually eliminate the other trigo functions and stick on to sin.
It should take less than 8 steps for a 3-4 marks proving question.
[pmath]a^2-b^2=(a+b)(a-b)[/pmath] is sometimes used in proving Trigo Identity. (Algebra rule)
I am going to use an example to illustrate how to use the above strategies

Q: Prove the identity [pmath](sec A - tan A)^2 = {1- sin A}/{1+ sin A}[/pmath]

[pmath](sec A - tan A)^2 =( {1}/{ cos A}-{sin A}/{cos A})^2[/pmath] (Change sec and tan into sin & cos)

= [pmath]( {1 - sin A}/{cos A})^2[/pmath]

= [pmath]{(1-sin A)^2}/{(cos A)^2} [/pmath]

= [pmath] {(1 - sin A)(1 - sin A)}/{(1 - sin^2 A)} [/pmath] (applying formula)

= [pmath] {(1 - sin A)(1 - sin A)}/{(1 - sin A)(1 + sin A)} [/pmath] (applying algebraic rule)

= [pmath]{1 - sin A}/{1 + sin A} [/pmath] (Proven)

Total number of steps = 6

21/09/2014

More notes to come ..Stay in touch...

20/09/2014

More Guideline to come...Stay tuned..