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Which is the polar form of the parametric equations x=5cos(theta) and y=5sin(theta) ? a. r= 5(theta) b. r= 5 c. r= 25 cos (theta) sin (theta) d. r= 25cos^2 (theta) + 25sin^2 (theta)
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Sep 12, 2019
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Which is the polar form of the parametric equations x=5cos(theta) and y=5sin(theta) ?
a. r= 5(theta)
b. r= 5
c. r= 25 cos (theta) sin (theta)
d. r= 25cos^2 (theta) + 25sin^2 (theta)
Mathematics
high-school
Ari Hietanen
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Ari Hietanen
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The polar coordinates are (r,
φ), where r=
and
cosφ=
, sinφ=
.
So, when we are counting r, we obtain that r=
=
That's why the polar form of the parametric equations is r=5 (the circle of radius 5) and the right answer is B.
Phani Rithvij
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Sep 17, 2019
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Phani Rithvij
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