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Answer to Question #34788 in Trigonometry for Kristen Woods
Question #34788
Polar coordinates of Q are (26, 80). Which is x-axis of this point in rectangular system?
A. 4.51
B. 4.25
C. 5.21
D. 5.41
A. 4.51
B. 4.25
C. 5.21
D. 5.41
Expert's answer
As we know, rectangular and polar coordinates are related by the following formulas:
x=r cos(fi)
y=r sin(fi)
So, we obtain x=26*cos(80)=4.51 which is A.
x=r cos(fi)
y=r sin(fi)
So, we obtain x=26*cos(80)=4.51 which is A.
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