please proof by two kind of methods
Topic:please proof definite integration by two kind of methods:
[latex]\int_0^{\pi}\frac{dx}{a+b\cos x}=?[/latex]
where a and b are real number and satisfy [latex]a>|b|[/latex].
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Topic:please proof definite integration by two kind of methods:
[latex]\int_0^{\pi}\frac{dx}{a+b\cos x}=?[/latex]
method 1: mathematical analysis.
mathod 2: complex analysis,
利用万能代换t=tanx/2,可以求出原函数。