ok thanks. is anyone using CASIO? i'm using them since year 7 so i would probably mess up with sharps. what's the best CASIO?
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SkylineGTR
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- 08-06-2004 10:09
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- 08-06-2004 11:11
(Original post by SkylineGTR)
ok thanks. is anyone using CASIO? i'm using them since year 7 so i would probably mess up with sharps. what's the best CASIO? -
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- 08-06-2004 11:12
no graphical calculators allowed?
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- 08-06-2004 11:17
(Original post by z!D4N)
no graphical calculators allowed? -
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- 08-06-2004 11:36
(Original post by TheWolf)
Ive got fx-991MS its the best -
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- 08-06-2004 12:00
i think ive mastered P1 except for a few topics.
can someone tell me whether these are hard or its caus i'm missing the obvious.
Algebra-completing the square,inequalities
Trig-solving harder problems eg sin^2(x+pi/6)=1/2 for -pi<x<pi
Coordinate Geometry-how to get coordinates eg when two equations are given
Diffrentiation-max min practical problems,decreasing/increasing functions
i know its quite a bit but if i can get the correct principles i know i can do well in the exam. thanks! ps rep will be given around 30 points -
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- 08-06-2004 12:00
Casio fx-85M very usefull
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- 08-06-2004 12:06
i've got Casio fx-83MS and i like it.........so used to my own calculator i get annoyed trying to use other ppls! lol
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- 08-06-2004 12:14
(Original post by chats)
Trig-solving harder problems eg sin^2(x+pi/6)=1/2 for -pi<x<pi
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- 08-06-2004 12:22
(Original post by TheWolf)
answer is -3pi/4, pi/4 and 3pi/4 right? -
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- 08-06-2004 12:30
(Original post by chats)
Trig-solving harder problems eg sin^2(x+pi/6)=1/2 for pi<x<pi
sin(x + pi/6) = 1/√2
x + pi/6 = pi/4
draw CAST diagram
to make it easier, look at the equation in degrees: x+30 = 45
so mark lines at 30 and 150 degrees
x+30 = 45 , 135
x = 15 , 105
now change back to radians:
x = pi/12 , 7pi/12 -
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- 08-06-2004 12:35
(Original post by chats)
i think ive mastered P1 except for a few topics.
can someone tell me whether these are hard or its caus i'm missing the obvious.
Algebra-completing the square,inequalities
Trig-solving harder problems eg sin^2(x+pi/6)=1/2 for -pi<x<pi
Coordinate Geometry-how to get coordinates eg when two equations are given
Diffrentiation-max min practical problems,decreasing/increasing functions
i know its quite a bit but if i can get the correct principles i know i can do well in the exam. thanks! ps rep will be given around 30 points -
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- 08-06-2004 12:38
(Original post by mockel)
this is how i would do something like this:
sin(x + pi/6) = 1/√2
x + pi/6 = pi/4
draw CAST diagram
to make it easier, look at the equation in degrees: x+30 = 45
so mark lines at 30 and 150 degrees
x+30 = 45 , 135
x = 15 , 105
now change back to radians:
x = pi/12 , 7pi/12
you missed out -11pi/12 -
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- 08-06-2004 12:39
(Original post by mockel)
i know this is a bit of a dumb question since you've posted so much on this thread, but have you looked through mik1a's notes at the beginnning on all the topics you're having trouble with. if so, then post any questions you're having difficulty with and i'll help -
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- 08-06-2004 12:42
(Original post by TheWolf)
you missed out -11pi/12 -
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- 08-06-2004 12:49
(Original post by mockel)
that's not a solution, is it? -
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- 08-06-2004 12:51
(Original post by TheWolf)
well it did say -pi<x<pi so it is -
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- 08-06-2004 12:51
sorry in that question where does the ^2 go?
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- 08-06-2004 12:53
(Original post by chats)
sorry in that question where does the ^2 go? -
SkylineGTR
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- 08-06-2004 13:11
(Original post by TheWolf)
Ive got fx-991MS its the best
List (bottom of page)
But it says you can use ANY sharp EL-520, and the 520VA has integration and differentiation! so why can we use it????
and do these have the quadratic formula as well??? i'm relly confused...
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