Two circles of radius R and r, where the circle with radius r having a fixed point roll outside the circle with radius R along its circumference forming epicycloid. What is the equation of epicycloid in Y( )?

Y( ) = (R+r)cos( )+rsin( ( frac{R+r}{r} ) )

Y( ) = (R+r)sin( )-rsin( ( frac{R+r}{r} ) )

Y( ) = (R+r)cos( )+rsin( ( frac{R+r}{r} ) )

Y( ) = (R-r)sin( )-rsin( ( frac{R+r}{r} ) )

Y( ) = (R+r)cos( )+rsin( ( frac{R-r}{r} ) )

Two circles of radius R and r, where the circle with radius r having a

1.	Two circles of radius R and r, where the circle with radius r having a fixed point roll outside the circle with radius R along its circumference forming epicycloid. What is the equation of epicycloid in Y( )?
A.	Y( ) = (R+r)sin( )-rsin( ( frac{R+r}{r} ) <em> </em>)
B.	Y( ) = (R+r)cos( )+rsin( ( frac{R+r}{r} ) <em> </em>)
C.	Y( ) = (R-r)sin( )-rsin( ( frac{R+r}{r} ) <em> </em>)
D.	Y( ) = (R+r)cos( )+rsin( ( frac{R-r}{r} ) <em> </em>)
Answer» B. Y( ) = (R+r)cos( )+rsin( ( frac{R+r}{r} ) <em> </em>)

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