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LagrangeSon678Best ResponseYou've already chosen the best response.2
you can multiply the x into the parenthese and obtain:dw:1324593176181:dw, then its just routine
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.2
integrate and evaluate at the limits
 2 years ago

virtusBest ResponseYou've already chosen the best response.1
could you please further elaborate thankx
 2 years ago

myininayaBest ResponseYou've already chosen the best response.0
\[\int\limits_{}^{}(xx^2) dx=\frac{x^{1+1}}{1+1}\frac{x^{2+1}}{2+1}+C\] \[\int\limits_{a}^{b}f(x) dx=F(x)_a^b=F(b)F(a)\]
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.2
man, i caught up with something else, or else i would have explained it to you. But the one above me, did a fairly good job
 2 years ago

virtusBest ResponseYou've already chosen the best response.1
thank you @ lagrangeson678 ^.^
 2 years ago

virtusBest ResponseYou've already chosen the best response.1
myininaya what did you get as your answer?
 2 years ago

myininayaBest ResponseYou've already chosen the best response.0
i found the antiderivative now all you have to do is: (just plug in upper limit) then write minus (then plug in lower limit)
 2 years ago

virtusBest ResponseYou've already chosen the best response.1
oh because i got a negative answer
 2 years ago

virtusBest ResponseYou've already chosen the best response.1
and according to the solution booklet it is a positive answer i.e 17/3 square units
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.2
dw:1324594394344:dw
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.2
dw:1324594437592:dw
 2 years ago

virtusBest ResponseYou've already chosen the best response.1
yes and i got 16/3 square units
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.2
Chek out the graph of this fucntion:http://www.wolframalpha.com/input/?i=integral+y+%3D+x%281x%29+%5B2%2C2%5D
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.2
Do you notice anything?
 2 years ago

virtusBest ResponseYou've already chosen the best response.1
yes the area is below the x axis, but how come in the solution book to this question, their answer is 17/3?
 2 years ago

virtusBest ResponseYou've already chosen the best response.1
OH I SEE!!!!!!!!!! THANKS HEAPS
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.2
but why were you saying 17/3
 2 years ago

virtusBest ResponseYou've already chosen the best response.1
oh thats what the solution book says
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.2
The answer is negative
 2 years ago

myininayaBest ResponseYou've already chosen the best response.0
\[\int\limits\limits_{}^{}(xx^2) dx=\frac{x^{1+1}}{1+1}\frac{x^{2+1}}{2+1}+C \] \[\int\limits_{2}^{2}(xx^2) dx=[\frac{x^2}{2}\frac{x^3}{3}]^2_{2}=[\frac{2^2}{2}\frac{2^3}{3}][\frac{(2)^2}{2}\frac{(2)^3}{3}]\] \[=[2\frac{8}{3}][2+\frac{8}{3}]=2\frac{8}{3}2\frac{8}{3}=22\frac{8}{3}\frac{8}{3}=0\frac{16}{3}\]
 2 years ago
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