Asked by Anonymous
Convert the rectangular coordinate (2,-2) to polar form and find two additional representations of this point.
Can you check my work and explain how to finish the question?
r=√(2)2+(-2)2
r=2√2
tan theta = (-2)/2
theta = -1
polar coordinate= (2√2, -1)
Can you check my work and explain how to finish the question?
r=√(2)2+(-2)2
r=2√2
tan theta = (-2)/2
theta = -1
polar coordinate= (2√2, -1)
Answers
Answered by
Reiny
no,
tanØ = -1 , not Ø = -1
since (2,-2) is in quadrant IV, Ø = 315° or 7π/4
so one answer is (2√2 , 7π/4)
another would be (-2√2, 3π/4)
tanØ = -1 , not Ø = -1
since (2,-2) is in quadrant IV, Ø = 315° or 7π/4
so one answer is (2√2 , 7π/4)
another would be (-2√2, 3π/4)
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