(−9, 9) (i) find polar coordinates (r, θ) of the point, where r > 0 and 0 ≤ θ < 2π.
1 answer:
Tan ⊕ 9/-9 = -1 so ⊕ = 3π/4
r = √(9^2+(-9)^2) = 12.73
Answer is (12.73, 3π/4)
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