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When the coordinate axes are rotated by ...

When the coordinate axes are rotated by an angle `tan^(-1) ((3)/(4))` about the origin, then the equation `x^(2) + y^(2) =9` is transformed to the equation.

A

`x^(2) -y^(2) =9`

B

`x^(2) + y^(2) + 2xy = 4`

C

`x^(2) + y^(2)= 9`

D

`x^(2) - y^(2) + 9 = 0`

Text Solution

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The correct Answer is:
C
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