intergration (1 Viewer)

[P.T.F.E]

intergrate ln(x-2)

 

[tommykins]

you can't integrate that with 2unit/3unit knowledge.

 

[P.T.F.E]

aparently i can it was in our 3 unit test!!

 

[Timothy.Siu]

aparently i can it was in our 3 unit test!!

u wud be finding the area under the curve, in which u wud change y=ln (x-2) to e^y=x-2
that question was actually in the 2unit exam this year, exactly the same,

 

[shaon0]

intergrate ln(x-2)

(x-2)ln(x-2)-x+C. Do u want the working because this is 4unit integration?

 

[Trebla]

At Extension 1 level you can integrate it, if it is a definite integral (area under the curve) without actually finding the primitive function explicitly using complementary areas in a rectangle (like the 2008 2 unit HSC paper as Timothy.Siu mentioned).
Also at Extension 1 level is if you are asked to differentiate (x - 2)ln(x - 2) and use the result to derive the primitive.

 

[P.T.F.E]

u wud be finding the area under the curve, in which u wud change y=ln (x-2) to e^y=x-2
that question was actually in the 2unit exam this year, exactly the same,

yer thought this was the way to do it cause they gave us a y coordinate aswell, failed to do this in the test tho kicking my self so easy!!