The equation of the tangent to the curve y = 9 - 3x^2 at the point where the ordinate and abscissa equal is...

MHT CET 2026 Mathematics question

The equation of the tangent to the curve at the point where the ordinate and abscissa equal is...

Answer: (D)

Ordinate equal to abscissa means , so with (as ): , , , . Differentiating : , so at . The tangent is

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Question ID VK-100040