Mathematics Homework Help
Mathematics Homework Help. Do some calculate
NEED ALL STEP FORE EACH QUSESTIONS
(1) Find parametric equations for the path of a particle travelling clockwise around the circle centered
at (2, 3) with radius 5 starting at the point (2, ;2). Use a parameter t, 0 ≤ t ≤ 2π.
(2) Find dy/dx and d2y/dx2 in terms of t for the curve
x = t2 + 1
y = et t 1
For what values of t is the curve concave up?
(3) Consider the curve given by
x = 1 + sin t
y = et + t2
from t = 0 to t = 5.
(a) Write an integral representing the length of the above curve. You do not need to evaluate or
simplify the integral.
(b) Suppose we rotate the above curve about the line x = =2. Write an integral representing the
surface area of the resulting surface of revolution. You do not need to evaluate or simplify the
integral.
(4) Find a rectangular equation for the following curve given in polar coordinates.
r2 sin 2θ = 6
(5) Consider the curve given in polar coordinates
r = 2 + cos 3θ
(a) Sketch the above curve
(b) Find the equation of the tangent line to the curve at θ = π
6
(c) Find the area enclosed by the above curve.
(6) Consider the curve given in polar coordinates
r = eθ
(a) For what values of θ,0 ≤ θ ≤ 2π, does this curve have a horizontal tangent line?
(b) For what values of θ,0 ≤ θ ≤ 2π, does this curve have a vertical tangent line?
(7) Consider the curve
r = cos 2θ
(a) Draw a graph of this curve.
(b) Write an integral representing the lenth of one loop of this curve.