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Mixed term xy is to be removed from the ...

Mixed term xy is to be removed from the general equation of second degree `ax^2+by^2+2hxy+2gx+2fy+c=0`,one should rotate the axes through an angle `theta`given by tan`2theta`equal to

A

` (a-b)/(2h)`

B

`(2h)/(a+b)`

C

`(a+b)/(2h)`

D

`(2h)/(a-b)`

Text Solution

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The correct Answer is:
D
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