Q. 1 B4.8( 5 Votes )

# Find the The Slopes of the tangent and the normal to the following curves at the indicated points : at x = 9

Given:

y = at x = 9

First, we have to find of given function, f(x),i.e, to find the derivative of f(x)

y =

y = (

(xn) = n.xn – 1

The Slope of the tangent is

y = (

Since, x = 9

x = 9 =

x = 9 =

x = 9 =

x = 9 =

x = 9 =

The Slope of the tangent at x = 9 is

The Slope of the normal =

The Slope of the normal =

The Slope of the normal =

The Slope of the normal = – 6

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