help plz

[strong rose]

Hii! I'd say the correct answer is H) (i) and (ii) are correct, since in (iii) you perform a change of variable in an integral, and if you want them to be equal you need to add the Jacobian, which can be understood as the variation of the new variable with the old variable. Hopefully I'm right

The equality will be right if $$\int_a^b f\left(x\right) dx = \int_a^b f\left(g\left(u\right)\right) \frac{dg\left(u\right)}{du} du$$

[quasi moth]

Boris

[wraith fern]

<@&286206848099549185> is the answer h or e? please clarify, I’m confused

[strong rose]

I'd say the answer is h

Hopefully someone else can confirm

[solid narwhal]

(iii) is true because t and u are dummy variables... the integration is of the same function over the same interval, so the results will be the same

[obtuse mesa]

hello

[strong rose]

Sorry for my mistake

[wraith fern]

so it is e) all of them, Correct?