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haha yes!

Where are you suppose to use the sin theta part then?

Right so its 5 12 13 triangle what would you use for the cos theta part?

yes

so cos Θ would be -12/13

make sense?

So then you would just solve after?

right

@peachpi Like this?

Alright yeah its negative sorry its hard to tell but we got sqrt of 1 over 26?

or -(√26)/26 if you have to rationalize

that's a restriction on Θ. That's how we know Θ is in the 3rd quadrant.|dw:1436551969316:dw|

the question is asking for cos (Θ/2), not Θ itself

The answer is simple, A true saiyan sprinkles when he tinkles.

Wait so whats the answer then? im so confused lmaoo

I just said it

cos (Θ/2) = -√(1/26)

Is there a way to check the answer itself?

try wolframalpha.com
not sure how you'd have to word it though

But are you sure your right? with the answer and everything?

yes

Alright I have an exam coming up which is why I am asking these questins XD haha thank you!

you're welcome