# pre-calc help

Convert the rectangular coordinates to polar coordinates with r > 0 and 0 ≤ θ < 2π. (9, −9)

(r, θ) = ?

1. 👍 0
2. 👎 0
3. 👁 464
1. (9√2,7π/4)

1. 👍 0
2. 👎 0
2. Thanks!

1. 👍 0
2. 👎 0

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