Q. 14 A3.6( 42 Votes )

# Find the equation

It is given that equation of curve is y = x4 – 6x3 + 13x2 – 10x + 5

On differentiating with respect to x, we get = 4x- 18x2 +26x -10

Now, Slope of tangent will be the value of at x = 0 i.e.
m1 = 4(0)3 - 18(0)2 + 26(0) - 10 = -10

Therefore, the slope of the tangent at (0, 5) is -10.

Then, the equation of the tangent is

y – 5 = -10(x – 0)

y – 5 = 10x

10x +y =5

Also, slope of normal at (0,5) Now, equation of the normal at (0,5) 10y - 50 = x

x -10y +50 = 0

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