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The tangent to the curve x^{2}+y^{2}=25 is parallel to the line 3x-4y=7 at the point?

  • Option 1)

    (-3,-4)

  • Option 2)

    (3,-4)

  • Option 3)

    (3,4)

  • Option 4)

    None

 

Answers (1)

Slope of tangent 

2x+2y\frac{dy}{dx}=0\\ \frac{dy}{dx}=-\frac{x}{y}=\frac{3}{4}\: given \\ So\: x=3 \\ y=-4\:\:or \:r=-3 \:y=4


Option 1)

(-3,-4)

This solution is incorrect 

Option 2)

(3,-4)

This solution is correct 

Option 3)

(3,4)

This solution is incorrect 

Option 4)

None

This solution is incorrect 

Posted by

Vakul

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