Trigonometry Test: PleaseHELP!?

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Danii94

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I've got a trig test tomorrow and i'm finding it hard to study. Maths has never been my thing and i'm really confused. It's on Sin, Cos & Tan (or Soh Coa Toa, i'm not sure. Are they the same thing?) and i think there is a bit on Pythagoras's Theorem. But i understand that, a little bit; a²+b²=c² (e.g. 3²+5²=c², 9+25=26 and then you square route 26=5.9 - Is that right)

Help me out if you can. Thanks xo
As dumbh3ad pointed out, i accidently answered the questions wrong. It was meant to say: (e.g. 3²+5²=c², 9+25=34 and then you square route 34=5.83 - Is that right) Thanks (Y)
 
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