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mathtutoring22
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you whats SOH CAH TOA?

mathtutoring22
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Cos(theta) = adjacent/hypothenus

mathtutoring22
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therefore Cos(45) = x/8

mathtutoring22
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you can use the graphic calculator. make sure it is on radian mode

JessicaChen
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@AravindG any chance of helping me?

AravindG
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Cos(45) = x/8
solve for x

JessicaChen
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do i just multiply (45) and 8? and find the square root from there

AravindG
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nope
cos 45 is 1/root(2)

AravindG
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so you multiply 1/root{2} with 8

JessicaChen
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1 square root of 2 is 1.4

JessicaChen
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is that right?

AravindG
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nope

AravindG
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1/root(2)=1/1.414=0.707

JessicaChen
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so do i just multiply 70 and 8?