I'm quite stucked at integrating functions

[khael14]

Homework Statement

Hello, I'm new here and it seems that this place would be the right place to post, well, I'm just starting up with Integral Calculus, and I think I'm stucked up with integrating fractions like this one.
Integral of 3/t^4 dt from 1 to 2

2. Homework Equations

yeah I mention ot above, oh, one more example,
integral of x^2+1 all over sqt of x dx from 1 to 2

The Attempt at a Solution

I'm quite stucked up! :(

Thank you!

 

[SammyS]

Homework Statement

Hello, I'm new here and it seems that this place would be the right place to post, well, I'm just starting up with Integral Calculus, and I think I'm stucked up with integrating fractions like this one.
Integral of 3/t^4 dt from 1 to 2

2. Homework Equations

yeah I mention ot above, oh, one more example,
integral of x^2+1 all over sqt of x dx from 1 to 2

The Attempt at a Solution

I'm quite stucked up! :(

Thank you!

Hello khael14. Welcome to PF !

Here at Physics Forums, we like to see what you have tried, before we give you help.

What have you tried? --- or --- What do you understand about integration relative to differentiation?

Where are you stuck?

 

[micromass]

Do you know the integral

$$\int x^n dx$$

where n is an integer not equal to -1??