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Question

Find the slope of the tangent to the curve f(x)=2x6+x41 at x=1.

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Solution

Slope of the tangent at a point x=a is the value of the derivative ay x=a

We have,

f(x)=2x6+x41
=ddx(2x6+x41)

=2dx6dx+dx4dxd.1dx

=12x5+4x30

=12x5+4x3

dydx at x=1

12(1)5+4(1)3

=12+4

=16

The slope of the tangent to the curve
f(x)=2x6+x41 at x=1 is 16.

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