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junior college 1 | H2 Maths
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Urgent tomoro exam at 9am . Need to know how to integrate this cos its 10 marks
Date Posted: 5 years ago
Views: 363
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done
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clear
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hopefully i didnt make a careless mistake...
Date Posted:
5 years ago
But wait cher how u make 1/xlnx be lnx when integrate. I thought 1/xlnx integrate bcome ln^2x^2 cos lnx multiply by ln x . Can u show me working pls for that part . And the Q states the ans need be in ln x ?
done
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clear
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If u can observe this it will be great. If not sub u=ln x. The Q asks u to show that the integrating factor is lnx, and then find the general solution (which does not have to be in terms of lnx of course).
Date Posted:
5 years ago
Sorry but i still abit confuse help please means if i do one by one like 1/x (1/lnx)
Give me lnx (1/lnx)
This doesnt equate to 1/(ln^2x^2) ? But why ? I thought x term multiply together get x^2? Why only the ln is squared ?
Give me lnx (1/lnx)
This doesnt equate to 1/(ln^2x^2) ? But why ? I thought x term multiply together get x^2? Why only the ln is squared ?
how did u arrive at ur ans? For integration of a product, u cannot just do one by one and multiply them together...
Can help another Q pls
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