A.)90 B.)41 C.)15 D.)83
1 answer:
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Answer:
Explanation:
A circle whose center is and radius
, has equation:
The center of circle is given as origin , therefore:
This circle passes , then the radius of circle is the distance
between origin
and
=>
Substitute ,
, and
back into original equation:
or
Hope this helps!
:)
So hmm notice the picture below
use the "green" reference angle, to get the tangent of it
use the "green" reference angle, to get the tangent of it