integration.......pls anyone here
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innervoice:
better ...use by parts method
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integration £ e^x ( 1/x^2)dx
if we supposed integration sign = £
I = 1/x^2 (£ e^x dx ) - £ (-2/x) (£ e^x dx) dx
I =( 1/x^2 ). (e^x) + 2 £ (e^x / x) . dx
I = e^x / x^2 + (e^x).(ln x) - £ e^x.(lnx) . dx
I = e^x / x^2 + (e^x).(lnx) - e^x lnx + e^x / x + £ (e^x) (1/x^2 ) dx
if we supposed integration sign = £
I = 1/x^2 (£ e^x dx ) - £ (-2/x) (£ e^x dx) dx
I =( 1/x^2 ). (e^x) + 2 £ (e^x / x) . dx
I = e^x / x^2 + (e^x).(ln x) - £ e^x.(lnx) . dx
I = e^x / x^2 + (e^x).(lnx) - e^x lnx + e^x / x + £ (e^x) (1/x^2 ) dx
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