1) Find all solutions θ

0° ≤ θ < 360° to the equation cos(2θ) = cosθ

2) Find the exact value of cot(795°)

I have no idea how to do these, any help or tips?

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- May 6th 2009, 04:58 PMalexcrossFind all solutions for and exact value of...
1) Find all solutions θ

0° ≤ θ < 360° to the equation cos(2θ) = cosθ

2) Find the exact value of cot(795°)

I have no idea how to do these, any help or tips?

- May 6th 2009, 05:05 PMProve It
- May 6th 2009, 05:08 PMProve It
- May 6th 2009, 05:10 PMskeeter