Mathematics: Post your doubts here!

whitecorp

whitecorp

Messages
164
Reaction score
111
Points
43
bamteck

bamteck

Messages
389
Reaction score
202
Points
53
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.
Click to expand...
Thann you very much ! I was confused :p
 
hussamh10

hussamh10

Messages
210
Reaction score
38
Points
38
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
Click to expand...
Thanku very much
 
aloha

aloha

Messages
77
Reaction score
11
Points
18
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

Messages
164
Reaction score
111
Points
43
steel said:
HOW TO SOLVE ? URGENT
Click to expand...

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.
 
You must log in or register to reply here.
Top