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1. I'm struggling with this question, I've done part A, I don't know where to start with B.

2. Trig - SohCahToa
3. SohCahToa?

4. Help?
5. (Original post by Naruke)
Help?
if you rearrange RsinΘ = r ( 1 + sinΘ )

to make sinΘ the subject it comes out quickly
6. (Original post by the bear)
if you rearrange RsinΘ = r ( 1 + sinΘ )

to make sinΘ the subject it comes out quickly
I did and I got:

But I don't how understand how they got that, because I've used both sine rule & ratio but I don't get that :/
7. (Original post by Naruke)
I'm struggling with this question, I've done part A, I don't know where to start with B.

CE=OCsin?
r=[R-r]sin?
r+rsin?=Rsin?
Rsin?=r[1+sin?]

Sorry, ?=theta
8. (Original post by Naruke)
I did and I got:

But I don't how understand how they got that, because I've used both sine rule & ratio but I don't get that :/
you need to get all the sinΘ together on the same side...
9. (Original post by the bear)
you need to get all the sinΘ together on the same side...
I don't understand what you talking about

but, I've thought of something... would this be ok?

CE is perpendicular to OB therefore OEC will be

As OT bisects O, COE will be

so,

10. (Original post by Naruke)
I don't understand what you talking about

but, I've thought of something... would this be ok?

CE is perpendicular to OB therefore OEC will be

As OT bisects O, COE will be

so,

That's fine
11. (Original post by Francesca Meng)
That's fine
Thanks

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