Equation of Normal at a Point (x,y) in Terms of f'(x)
Let C be a cu...
Question
Let C be a curve given by y(x)=1+√4x–3,x>34. If P is a point on C, such that the tangent at P has slope 23, then a point through which the normal at P passes, is:
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Solution
y=1+√4x–3dydx=12√4x−3×4=23⇒x=3,y=1+3=4Slope of the normal=−32Equation of the normal is,y−4=−32(x−3)⇒3x+2y−17=0⇒Which passes through(1,7)