- #1
Meadman23
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Homework Statement
Solve for Θ
v2/RgsinΘ = sinΘ/cosΘ
Homework Equations
The Attempt at a Solution
I did:
(1) v2/RgsinΘ * (sinΘ) = sinΘ/cosΘ * (sinΘ)
which gives me:
(2) v2/Rg = sin2Θ/cosΘ
then after converting some identities I get:
(3) v2/Rg = tanΘsinΘ
I figure I can't take a tan-1 and then a sin-1 of the values on the left so I don't know where to go from there.
Next, starting from (2) I tried:
(3 alt) v2/Rg = (1-cos2Θ)/cosΘ
and I got:
(4) v2/Rg = secΘ - cosΘ
and it once again stalls me because I can't figure out how to get Θ alone.
My professor tells me there is a simple trig. identity that will help me figure this problem out, but I'm just not seeing one that doesn't leave me lost.