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Mathematics: Post your doubts here!

whitecorp

whitecorp

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bamteck

bamteck

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whitecorp said:
You can calculate the area under the line CD between x=2 and x=3 (which is a trapezium) and subtract from it the area under the curve y=x^3-6x^2+9x between x=2 and x=3 (you can do this through basic integration) to get your answer.

Hope this helps. Peace.
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Thann you very much ! I was confused :p
 
hussamh10

hussamh10

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leadingguy said:
tan(pi- x) = -tanx so ans is -k.

tan(pi/2 - x) = reflection of tanx means the ans will be inverse. 1/k
it is better explained in book from pages 172-179 core maths by s.bostock and s.chandler see there for clear understanding. by means of graphs
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Thanku very much
 
aloha

aloha

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can any1 plz show me how to solve |x-2| +|3x-1|=0 and plot the graph too.........plz ur help will be highly appreciated.....
 
whitecorp

whitecorp

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steel said:
HOW TO SOLVE ? URGENT
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Notice that the integral is basically of the form f"(x) * e^ f(x), which should simply reduce to e^f(x) +C. Note though certain adjustments must be made to the constants (ie f(x)=-3x^2, which yields f'(x)=-6x, where clearly within your problem the constant -6 is missing).

Hope this helps. Peace.
 
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