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Find the Reciprocal x2+9xy−y2x2−4xy+y2\frac { x ^ { 2 } + 9 x y - y ^ { 2 } } { x ^ { 2 } - 4 x y + y ^ { 2 } }

Question 60

Multiple Choice

Find the reciprocal.
- x2+9xy−y2x2−4xy+y2\frac { x ^ { 2 } + 9 x y - y ^ { 2 } } { x ^ { 2 } - 4 x y + y ^ { 2 } }


A) x2−9xy+y2x2+4xy−y2\frac { x ^ { 2 } - 9 x y + y ^ { 2 } } { x ^ { 2 } + 4 x y - y ^ { 2 } }
B) x2−4xy+y2x2+9xy−y2\frac { x ^ { 2 } - 4 x y + y ^ { 2 } } { x ^ { 2 } + 9 x y - y ^ { 2 } }
C) 1x2−4xy−y2\frac { 1 } { x ^ { 2 } - 4 x y - y ^ { 2 } }
D) x2+4xy+y2x2−9xy−y2\frac { x ^ { 2 } + 4 x y + y ^ { 2 } } { x ^ { 2 } - 9 x y - y ^ { 2 } }

Correct Answer:

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