O-Level Additional Math
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there is a method u can use.
don’t really need quadratic equations. but if u know how to solve quadratic equations using ya calculator, u can do the same for cubic equations.
only thing, no marks given if no working shown. -
Hi
Can anyone help? Need to find a Maths Tutor for my Sec 2 daughter, preferred a 1-to-1 tution. My location is Lengkok Bahru
Thanks -
e^(ln x)=x is a useful identity that is needed in both O Level and A Level math.
It is simple, yet when faced with it for the first time it can be puzzling for students.
I have written a short article on: http://mathtuition88.wordpress.com/2013/05/04/why-is-elnx-o-level-math-a-level-math-tuition/
describing two simple ways to understand this formula.
Best wishes.
(it won't appear by itself in a question, but so far I have encountered that it is often needed in the intermediate workings.) -
A box contains some white and black mugs.
If 3 white mugs are taken out of the box, 2/7 of the remaining mugs in the box are white mugs. If 5 black mugs are removed from the box, 2/3 of the remaining mugs in the box are black mugs.
By forming an algebraic equation, find the number of mugs in the box originally.\t\t
Thank you in advance!
Note: I’m sorry if my question is too easy or seems to be asked without thinking. I tried doing for about 30 minutes but still can’t seem to solve it with algebra. -
Haneyi:
HI. is this a Sec 1 or Sec 2 question?A box contains some white and black mugs.
If 3 white mugs are taken out of the box, 2/7 of the remaining mugs in the box are white mugs. If 5 black mugs are removed from the box, 2/3 of the remaining mugs in the box are black mugs.
By forming an algebraic equation, find the number of mugs in the box originally.\t\t
Thank you in advance!
Note: I'm sorry if my question is too easy or seems to be asked without thinking. I tried doing for about 30 minutes but still can't seem to solve it with algebra.
If it's Sec 2 or above, here's the solution: https://www.facebook.com/photo.php?fbid=517213775004642&set=a.500572863335400.1073741830.466376010088419&type=3&src=https%3A%2F%2Ffbcdn-sphotos-c-a.akamaihd.net%2Fhphotos-ak-frc1%2F316389_517213775004642_1830270652_n.jpg&size=633%2C756
If sec1, then u would not have learnt simultaneous equations and I'll have to tackle it another way. -
pinkapple:
It's a Sec 1 question. ^^
HI. is this a Sec 1 or Sec 2 question?Haneyi:
A box contains some white and black mugs.
If 3 white mugs are taken out of the box, 2/7 of the remaining mugs in the box are white mugs. If 5 black mugs are removed from the box, 2/3 of the remaining mugs in the box are black mugs.
By forming an algebraic equation, find the number of mugs in the box originally.\t\t
Thank you in advance!
Note: I'm sorry if my question is too easy or seems to be asked without thinking. I tried doing for about 30 minutes but still can't seem to solve it with algebra.
If it's Sec 2 or above, here's the solution: https://www.facebook.com/photo.php?fbid=517213775004642&set=a.500572863335400.1073741830.466376010088419&type=3&src=https%3A%2F%2Ffbcdn-sphotos-c-a.akamaihd.net%2Fhphotos-ak-frc1%2F316389_517213775004642_1830270652_n.jpg&size=633%2C756
If sec1, then u would not have learnt simultaneous equations and I'll have to tackle it another way. -
Haneyi:
It's a Sec 1 question. ^^[/quote]here you go: https://www.facebook.com/photo.php?fbid=517657854960234&set=a.500572863335400.1073741830.466376010088419&type=3&src=https%3A%2F%2Ffbcdn-sphotos-g-a.akamaihd.net%2Fhphotos-ak-prn1%2F944874_517657854960234_454272208_n.jpg&size=819%2C578
HI. is this a Sec 1 or Sec 2 question?pinkapple:
[quote=\"Haneyi\"]A box contains some white and black mugs.
If 3 white mugs are taken out of the box, 2/7 of the remaining mugs in the box are white mugs. If 5 black mugs are removed from the box, 2/3 of the remaining mugs in the box are black mugs.
By forming an algebraic equation, find the number of mugs in the box originally.\t\t
Thank you in advance!
Note: I'm sorry if my question is too easy or seems to be asked without thinking. I tried doing for about 30 minutes but still can't seem to solve it with algebra.
If it's Sec 2 or above, here's the solution: https://www.facebook.com/photo.php?fbid=517213775004642&set=a.500572863335400.1073741830.466376010088419&type=3&src=https%3A%2F%2Ffbcdn-sphotos-c-a.akamaihd.net%2Fhphotos-ak-frc1%2F316389_517213775004642_1830270652_n.jpg&size=633%2C756
If sec1, then u would not have learnt simultaneous equations and I'll have to tackle it another way. -
the above method is very nice.
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Does your child need practice on Expansion and Factorisation, especially the more challenging questions? It is a key technique that needs to be honed for the O Levels.
Practice Hwa Chong Institution Expansion and Factorisation (Sec 2, IP) here.
http://mathtuition88.wordpress.com/2013/05/07/sec-2-ip-hci-revision-1-expansion-and-factorisation/ -
Need help to solve the following question.
Log (base 9) a = log (base 12) b =log (base 16) (a+b), find the value of a/b.
TIA
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