For function f(x, y) = sin-1(x2 + y2) critical points are found. Now a new graph g(x, y) is formed by coupling graphs f(x, y) and f(x, y) = ‚Äö√Ñ√∂‚àö√ë‚àö¬® sin-1(x2 + y2). What are the critical points of g(x, y)$

Only positive (x, y) are critical points

For function f(x, y) = sin-1(x2 + y2) critical points are found. Now a

1.	For function f(x, y) = sin^-1(x² + y²) critical points are found. Now a new graph g(x, y) is formed by coupling graphs f(x, y) and f(x, y) = ‚Äö√Ñ√∂‚àö√ë‚àö¬® sin^-1(x² + y²). What are the critical points of g(x, y)$
A.	(0,0)
B.	There are infinite such points
C.	Only positive (x, y) are critical points
D.	(90,-90)
Answer» C. Only positive (x, y) are critical points

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For function f(x, y) = sin-1(x2 + y2) critical points are found. Now a new graph g(x, y) is formed by coupling graphs f(x, y) and f(x, y) = ‚Äö√Ñ√∂‚àö√ë‚àö¬® sin-1(x2 + y2). What are the critical points of g(x, y)$

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For function f(x, y) = sin^-1(x² + y²) critical points are found. Now a new graph g(x, y) is formed by coupling graphs f(x, y) and f(x, y) = ‚Äö√Ñ√∂‚àö√ë‚àö¬® sin^-1(x² + y²). What are the critical points of g(x, y)$