IF YOU WANT TO LEARN MORE ABOUT TRIGONOMETRY YOU CAN NOT MISS INVERSE TRIGONOMETRIC FUNCTIONS.
AS YOU SEE, YOU HAVE TO PRACTISE ON WORKING WITH YOUR CALCULATOR.
AS YOU SEE, YOU HAVE TO PRACTISE ON WORKING WITH YOUR CALCULATOR.
20 / 12 / 11 SIMPLIFYING TRIGONOMETRIC EXPRESSIONS
tg2x + 1 = sec2x tg2x + 1 = sec2x tg2x + 1 = sec2x tg2x + 1 = cosec2x tg2x + 1 = sec2x tg2x + 1 = sec2x
TRY TO SIMPLIFY A TRIGONOMETRIC EXPRESSION AND, FIND OUT IF YOU ARE RIGHT!
cotg2x + 1 = cosec2x cotg2x + 1 = cosec2x cotg2x + 1 = cosec2x cotg2x + 1 = cosec2x cotg2x + 1 = cosec2x
16 / 12 / 11 TRIGONOMETRY WORD PROBLEMS
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11 / 11 / 11 A QUESTION TO THINK ABOUT
sin30=1/2 sin30=1/2 sin30=1/2 sin30=1/2 sin30=1/2 sin30=1/2 sin30=1/2 sin30=1/2 sin30=1/2 sin30=1/2 sin30=1/2
m If x is a positive angle smaller than 180° and cos(x) = -1/3, then sin(x) =
A) -2/3 B) 2√2 / 3 C) 8/9 D) -8/9 E) 4/9
A) -2/3 B) 2√2 / 3 C) 8/9 D) -8/9 E) 4/9
m
cos60=1/2 cos60=1/2 cos60=1/2 cos60=1/2 cos60=1/2 cos60=1/2 cos60=1/2 cos60=1/2 cos60=1/2 cos60=1/2 cos60=1/2
More Logarithm
When I was looking for webpages of logarithm I found that one that contains a lot of examples of the logarithm rules and other things. I hope that it can help you to understand better how to do it.
25 / 11 / 11 PROBLEM OF THE WEEK
loglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglog
Complete the table:
loglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglogloglog
Logarithms
While I was looking for a page where logarithms were explained, I found this webpage, and there they have our whole unit (because logariths are powers, and you must handle them right if you want to understand logarithms). I think it's a good explanation.
LOGARITHMS
I also found this videos about logarithms with a lot of examples and their properties:
Introduction to logarithms
Logarithms properties Part 1
Logarithms properties Part 2
I'd also like to propose some problems. There aren't many problems related to logarithms, so mine won't be very difficult or elaborated:
log a y = c; log a y^2 =??
LOGARITHMS
I also found this videos about logarithms with a lot of examples and their properties:
Introduction to logarithmsLogarithms properties Part 1
Logarithms properties Part 2
I'd also like to propose some problems. There aren't many problems related to logarithms, so mine won't be very difficult or elaborated:
log a y = c; log a y^2 =??
14 / 11 / 11 EXERCISES OF RADICALS
We check in class all the exercises you have for homework.
But if you have any problems, HERE, you will find the correction for some exercises:
But if you have any problems, HERE, you will find the correction for some exercises:
Roots and powers
These last days we have been seeing the properties of the roots and the powers. Here, you have a link which explains all.
11 / 11 / 11 GOOGLE GROUPS
I´ve opened a group for you to discuss maths questions and possible problems with maths.
I think it can be very useful. Good luck!
9 /11 / 11 SIMPLIFYING RADICALS
As you know, radicals have to be simplified as much as possible. Here, you will find different ways to do it and some examples.
7 / 11 / 11 POWERS & RADICALS
Let´s start a new lesson!
And, now a specific calculator for radicals:
21/10/11 INTERVALS
Next week we will be working with intervals. This link could be interesting:
mathsisfun.intervalsTo know more about sets:
mathsisfun.set-builder-notation
17/10/11 REAL NUMBERS
To know more about numbers:
6/10/11 Pascal´s triangle
You can find Pascal´s triangle history:
Learn how Pascal´s triangle works:
Explore Pascal´s triangle:
Pascal´s triangle applications:
The Binomial Theorem
The Binomial Theorem
30/9/11 COMBINATORICS
This week we have been working with combinatorics. There are several techniques to count the set items.
Learn them all!
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