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Mathematics 14 Online
OpenStudy (anonymous):

Integral and u sub problem

OpenStudy (anonymous):

I think the answer is True.

OpenStudy (anonymous):

true,u=cos(x)

OpenStudy (amistre64):

since u = cos(x) and x = the limits of integration; we can simply rephrase the limits by letting them speak the language of u instead of x

OpenStudy (amistre64):

the thing is, their limits tend to be transposed to me

OpenStudy (amistre64):

cos(0) = 1 , not 1/2 cos(pi/3) = 1/2 ; not 1

OpenStudy (amistre64):

by flipping the limits you negate the results

OpenStudy (anonymous):

Yeah, that's what I thought. They've been flipped, but I was like "seems legit"!

OpenStudy (amistre64):

|dw:1331646601578:dw|

OpenStudy (amistre64):

so the results arent "equal" or "equivalent" perse

OpenStudy (amistre64):

15 = -15 is false .... but 0 = -0 is true so it depends on the outcome id spose :)

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