AddMath: Trigonometry
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is there any easy way to study trigo, emath the topic can understand but the others dun like the Addmath chapters
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i think trigo the easiest for A maths.
mem the formula and those "rules"
check the sides, angles
play ard with the formula, apply the rules -
TYS
PAST YEAR PAPERS
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Trigo v. big chapter leh
Identies, angles, RELATIVE VELOCITY
...etcs -
x2. Trigo is easy. But if you cannot master trigo, you will have difficulty later in marks and physics.
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trigo is not as hard as you think it is. but it is impt. practice makes perfect.
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Trigo is really practise till perfect. If you don't understand any of the topics covered in trigo, ask your friends, ask your cousin, ask your teachers. Ask them to teach you till you understand and is comfortable with doing them without referring to the textbook.
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if u ask ur teacher " eh. why sin 2A = 2sinAcosA lidat har? ", i think he/she wouldnt reply you. haha. for A maths trigo, all you need is mere memorise + practice. try to attempt as many questions as possible. it does help, seriously.
then again, if you have doubts, ASK whoever knows the chapter well. For A maths, practice is just the only solution to it. -
sin(A+B)=sinAcosB+cosAsinBOriginally posted by maxtonian:if u ask ur teacher " eh. why sin 2A = 2sinAcosA lidat har? ", i think he/she wouldnt reply you. haha. for A maths trigo, all you need is mere memorise + practice. try to attempt as many questions as possible. it does helps, seriously. then again, if you have doubts, ASK whoever knows the chapter well. For A maths, practice is just the only solution to it.
Put B=A, then
sin(A+A)=sinAcosA+cosAsinA
sin 2A = 2sinAcosA -
TOA CAH SOH
Can't remember the above, please drop trigo. -
or u can draw out the graphs and put them together.Originally posted by maxtonian:if u ask ur teacher " eh. why sin 2A = 2sinAcosA lidat har? ", i think he/she wouldnt reply you. haha. for A maths trigo, all you need is mere memorise + practice. try to attempt as many questions as possible. it does help, seriously. then again, if you have doubts, ASK whoever knows the chapter well. For A maths, practice is just the only solution to it.
My last time teacher train us that way, extremely old school.
Once u understand the graphs, then no need "memorise" formula liao, cos you know sin 2A equals 2sinAcosA.
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haha that i understand fully.Originally posted by teraexa:TOA CAH SOH
Can't remember the above, please drop trigo. -
If got such teacher, me see the teacher no up.Originally posted by maxtonian:if u ask ur teacher " eh. why sin 2A = 2sinAcosA lidat har? ", i think he/she wouldnt reply you. haha. for A maths trigo, all you need is mere memorise + practice. try to attempt as many questions as possible. it does help, seriously. then again, if you have doubts, ASK whoever knows the chapter well. For A maths, practice is just the only solution to it.
I'm just glad I've not had such a teacher before. I'm not one who understand black and white... if you are going to ask me to read, please kill me. -
my teacher was like thatOriginally posted by ndmmxiaomayi:If got such teacher, me see the teacher no up.
I'm just glad I've not had such a teacher before. I'm not one who understand black and white... if you are going to ask me to read, please kill me.
well, dunno if its good or bad lah...
maybe he just wanted us to work hard ourselves, and discover it ourself....cause like that then u understand well -
I considering whether I should start again to give tuition after completing my degree...
Guaranteed improvements one...
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Haha, I understand that... but understanding a piece of text is seriously not for me.Originally posted by Y_Shun:my teacher was like that
well, dunno if its good or bad lah...
maybe he just wanted us to work hard ourselves, and discover it ourself....cause like that then u understand well
Somehow... words make my eyes crossed. I can't see properly. Neither am I able to understand properly, unless the letters/numbers are far apart enough.
A piece of text needs to be processed a few times mentally in my mind before I understand it. Imagine an A Maths textbook. Goodness. I rather someone teach me. Or kill me if you want me to read. Or bring it to a shop, photocopy and enlarge it.