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Question

The sum of the lengths of the tangent and normal at point (2,2) on the curve x5=2y4 is

A
184110 units
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B
94110 units
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C
34110 units
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D
4110 units
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Solution

The correct option is B 94110 units
x5=2y45x4=8y3dydxdydx=5x48y3
m=(dydx)(2,2)=54
Required sum=21+1625+21+2516
=94110 units.

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