Coordinate Geometry Question 115
Question: The distance of the point $ (b\cos \theta ,b\sin \theta ) $ from origin is
[MP PET 1984]
Options:
A) $ b\cot \theta $
B) $ b $
C) $ b\tan \theta $
D) $ b\sqrt{2} $
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Answer:
Correct Answer: B
Solution:
Distance $ =\sqrt{b^{2}{{\cos }^{2}}\theta +b^{2}{{\sin }^{2}}\theta }=b $ .