Reference no: EM131100277
1. Question
Solve the following Integrals,
1. ∫cos7x sin4x dx
2. ∫cos5x sin6x dx
2. Question
a. A circle with co-ordinates (0,2), (0,-2), (2,0), (-2,0) is rotated 360 degrees about the y-axis, what is the volume of the solid formed by this rotation.
b. Rotate a curve defined by the function y = x2, between x = 2 and x = 4, about the,
i. x - axis
ii. y - axis
3. Question
Solve the integral U(x) = ∫tanθdθ.
4. Question
Solve the integral ∫cos(ln(x)).
5. Question
Two stiff parallel wires a distance d apart in a horizontal plane act as rails to support a light metal rod of mass m (perpendicular to each rail). A magnetic field →B, directed vertically upward acts throughout.
At t = 0, a constant current I begins to flow through the system. Determine the speed of the rod, which starts from rest at t = 0, as a function of time
(a) assuming no friction between the rod and the rails,
(b) if the coefficient of friction is μk
(c) In which direction does the rod move, east or west, if the current through it heads north?
6. Question
Write a program which takes in an input(number of alphabets) and prints out the alphabets such that a diamond shape is created at the core of the arrangement of the alphabets.
For example, if you enter 6, the program takes the alphabets A,B,C,D, E and F and arranges them in the manner shown below.
ABCDEFEDCBA
ABCDE EDCBA
ABCD DCBA
ABC CBA
AB BA
A A
AB BA
ABC CBA
ABCD DCBA
ABCDE EDCBA
ABCDEFEDCBA
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Determine the values of x
: Determine the values of x for which the function, as represented by the graphs in Fig. 23.12, is continuous. If the function is not continuous, determine the reason.
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