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Home  >>  CBSE XII  >>  Math  >>  Application of Derivatives
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Find the equation of the normal to curve \(y^2 = 4x\) which passes through the point \((1, 2).\)

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  • $\large\frac{d}{dx}$$(x^n)=nx^{n-1}$
Step 1:
The curve is $y^2=4x$
Differentiating with respect to $x$
Step 2:
At $(1,2)$
Slope of normal $=-1$
Equation of normal at (1,2)
answered Aug 9, 2013 by sreemathi.v
edited Sep 2, 2013 by sharmaaparna1

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