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Homework Statement
Discuss the convergence of
Integral(x3/2 sin 2x dx) range is from 0 to 1
Homework Equations
|sin x| =< 1The Attempt at a Solution
The sine function converges absolutely. It is also increasing from 0 to 90 degrees, decreases until 27 decrease and it is negative from 180 to 270 before it starts increasing again becoming positive at 360 degrees again.
sin 2x will always be less than or equal to 1 and greater or equal to -1. But for this interval of 0 to 1 it is increasing and therefore the function x3/2 sin 2x dx over the given range is increasing and therefore diverging
(My lack of understanding here is that my textbook says that this test should only be used where f(x) is positive, decreasing and continuous. Yet I am asked to discuss this integral which over the given range of 0 to 1 is increasing, hence I'm compelled to say that it increases and therefore diverges.)
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