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Rotate the Axes to Eliminate The xyx y -Term in the Equation Below and Then Write the Equation

Question 120

Multiple Choice

Rotate the axes to eliminate the xyx y -term in the equation below and then write the equation in standard form.
xy+1=0x y + 1 = 0


A) (x) 2(2) 2(y) 2(2) 2=1\frac { \left( x ^ { \prime } \right) ^ { 2 } } { ( \sqrt { 2 } ) ^ { 2 } } - \frac { \left( y ^ { \prime } \right) ^ { 2 } } { ( \sqrt { 2 } ) ^ { 2 } } = 1
B) (x) 2(2) 2+(y) 2(2) 2=1\frac { \left( x ^ { \prime } \right) ^ { 2 } } { ( \sqrt { 2 } ) ^ { 2 } } + \frac { \left( y ^ { \prime } \right) ^ { 2 } } { ( \sqrt { 2 } ) ^ { 2 } } = 1
C) (x) 22+(y) 22=1\frac { \left( x ^ { \prime } \right) ^ { 2 } } { 2 } + \frac { \left( y ^ { \prime } \right) ^ { 2 } } { 2 } = 1
D) (x) 22(y) 22=1\frac { \left( x ^ { \prime } \right) ^ { 2 } } { 2 } - \frac { \left( y ^ { \prime } \right) ^ { 2 } } { 2 } = 1
E) (y) 2(2) 2(x) 2(2) 2=1\frac { \left( y ^ { \prime } \right) ^ { 2 } } { ( \sqrt { 2 } ) ^ { 2 } } - \frac { \left( x ^ { \prime } \right) ^ { 2 } } { ( \sqrt { 2 } ) ^ { 2 } } = 1

Correct Answer:

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