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maths paper 4 help

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fahadali:
Hi

I was wonder when solving the question paper to what correct decimal point should i answer the question ?

e.g: 24.5059595958

p.s: I'm talking about the questions where they don't tell me to what decimal point should i write, which is in most questions XD


the second thing is in trigonometry:

I'm not sure when I can use Sin, Cos, Tan ?

should it be a right angle triangle ?

and the last thing what's the formula for compound interest ?

vids:

--- Quote from: fahadali on May 17, 2009, 04:48:29 pm ---Hi

I was wonder when solving the question paper to what correct decimal point should i answer the question ?

e.g: 24.5059595958

p.s: I'm talking about the questions where they don't tell me to what decimal point should i write, which is in most questions XD


the second thing is in trigonometry:

I'm not sure when I can use Sin, Cos, Tan ?

should it be a right angle triangle ?

and the last thing what's the formula for compound interest ?

--- End quote ---

soh cah toa
o=opp
a=adj
h=hyp

24.5

fahadali:
what about compound interest ?

vids:
P(1+{r/100})^n
p=principle
r=rate of interest
n=no. of years

hope this helps

vids:
gotta go

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