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**ryant727****Member**- Registered: 2006-06-04
- Posts: 2

please someone help me with one of these 2 problems... They both deal wiht law of sins:

1. A=42º

a=7

b=7

2. cos²Θ/sinΘ + sinΘ = csc Θ

Thank you anyone who can help me!

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**George,Y****Member**- Registered: 2006-03-12
- Posts: 1,306

cscθ = 1/sinθ

multiply both sides by sinθ

**X'(y-Xβ)=0**

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