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Find cos45degrees
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
1/sqrt(2)
anonymous
  • anonymous
that's the answer.
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http://media.education2020.com/evresources/2090740_6784a93e-d2f8-4ccd-a982-7c20f9954182.png

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More answers

UnkleRhaukus
  • UnkleRhaukus
|dw:1436449400872:dw|
UnkleRhaukus
  • UnkleRhaukus
|dw:1436449457035:dw|
UnkleRhaukus
  • UnkleRhaukus
\[\cos\theta = \frac{\text{adj}}{\text{hypo}}\]
ASAPT
  • ASAPT
ok
anonymous
  • anonymous
-_-
ASAPT
  • ASAPT
what
UnkleRhaukus
  • UnkleRhaukus
ok
ASAPT
  • ASAPT
whats goin on
UnkleRhaukus
  • UnkleRhaukus
trigonometry ?
ASAPT
  • ASAPT
yea
UnkleRhaukus
  • UnkleRhaukus
we know the hypotenuse, from pythagorus
ASAPT
  • ASAPT
idk what a pythagorus is
UnkleRhaukus
  • UnkleRhaukus
pythagorus says, for a right angled triangle of sides a,b,c a^2 + b^2 = c^2 in our case 1 + 1 = 2
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  • ASAPT
ok then what?
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so the anmswer is 2?
UnkleRhaukus
  • UnkleRhaukus
nope
UnkleRhaukus
  • UnkleRhaukus
hypo^2 is 2
ASAPT
  • ASAPT
ok whats next
UnkleRhaukus
  • UnkleRhaukus
so hypo is √2
ASAPT
  • ASAPT
so that over 2
UnkleRhaukus
  • UnkleRhaukus
so cos 45 = adj / √2
UnkleRhaukus
  • UnkleRhaukus
where our adjacent side is 1
ASAPT
  • ASAPT
ok so the answers 1
UnkleRhaukus
  • UnkleRhaukus
no
ASAPT
  • ASAPT
ok

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