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A common tangent to x^(2)-2y^(2) =18 ...

A common tangent to ` x^(2)-2y^(2) =18 and x^(2)+ y^(2) =9` is

A

` y =2x + 3sqrt5`

B

` y= sqrt2 x +3sqrt3 `

C

` y= 2x +3sqrt7 `

D

` y= sqrt2x +3sqrt5`

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The correct Answer is:
B
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AAKASH SERIES-REVISION EXERCISE -HYPERBOLA
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  12. Statement 1: Equation of tangents to the hyperbola 2x^(2) -3y^(2) =6 ...

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  18. If P( 3 sec theta, 2 tan theta ) and Q( 3sec phi, 2 tan phi ) " wher...

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