Find the Reciprocal $$\frac { x ^ { 2 } + 9 x y - y ^ { 2 } } { x ^ { 2 } - 4 x y + y ^ { 2 } }$$

question 60

Multiple Choice

Find the reciprocal.
- $$\frac { x ^ { 2 } + 9 x y - y ^ { 2 } } { x ^ { 2 } - 4 x y + y ^ { 2 } }$$

• A) \(\frac { x ^ { 2 } - 9 x y + y ^ { 2 } } { x ^ { 2 } + 4 x y - y ^ { 2 } }\)
• B) \(\frac { x ^ { 2 } - 4 x y + y ^ { 2 } } { x ^ { 2 } + 9 x y - y ^ { 2 } }\)
• C) \(\frac { 1 } { x ^ { 2 } - 4 x y - y ^ { 2 } }\)
• D) \(\frac { x ^ { 2 } + 4 x y + y ^ { 2 } } { x ^ { 2 } - 9 x y - y ^ { 2 } }\)

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Definitions:

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