The function r(t) traces a circle. Determine the radius, center, and plane containing the circle r(t)=−9i+ (11cos(t))j+ (11sin(t
))k
1 answer:
we are given
r(t)=−9i+ (11cos(t))j+ (11sin(t))k
now, we can find x-components , y-component and z-component

now, we can square and add them

now, we can simplify it




we can also write as

now, we can compare it with

Center:
(0,0,0)
radius:

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