Question
Question: The polar co-ordinates of (–1, \(\sqrt{3}\)) is-...
The polar co-ordinates of (–1, 3) is-
A
(2,6π)
B
(2,3π)
C
(2,32π)
D
(−2,32π)
Answer
(2,32π)
Explanation
Solution
r = x2+y2
r = 1+3= 2
a = tan–1 ∣x∣∣y∣
a = tan–1 (3 = 3π–1, 3) lies in II quad.
\ q = p – a = p – 3π = 32π
(2,32π)