Reference no: EM132588220
Assignment - Differentiation of polynomials and their applications
Q1. Find the derivative of the following equations
(i) y = x
(ii) y= 2x2
(iii) y= 4x4+3x3+5
Q2. Find the gradient function of the following functions at the points given
(i) y= 3x4+ 4x +5 x=2
(ii) (x2-1)2/x+1 x=1
Q3. The equation of a curve is given by y= x3+3x2-3x
(i) Find the value of y when x=1.
(ii) Find the equation of the tangent to the curve at the point x=1.
(iii) Find the equation of the normal to the curve at the point x=1.
Q4. The equation of a curve is y=2x3+3x2
(i) Find the x-intercept of the curve.
(ii) The y-intercept of the curve.
(iii) Determine stationary points and define their nature.
Q5. A closed cylinder metal tin has a radius r and height h. The capacity of the tin is 500π litres.
(i) Derive the equation of surface area in terms of radius only.
(ii) Find the value of r for which the surface area is minimum.
(iii) Calculate surface area of the metal used to make the cylinder.
Q6. The displacement of a particle S metres, t seconds after passing a fixed-point O is given by S = 3+20t-5t2. Calculate
(i) The displacement of the particle after 2 seconds.
(ii) Time taken for the particle to return to O.
(iii) Initial velocity.
(iv) Determine velocity after 1 second.