Substitute
and
. Then the integral transforms to

Apply the power rule.

Now put the result back in terms of
.

Step-by-step explanation:
Answer is in the picture.
2.75=2 3/4 because you would say 2.75 as two and seventy-five hundredths. Seventy-five hundredths is just like 3 quarters out of 4 because 1 quarter=25. 2=50. 3=75. So, 2.75 as a fraction in simplest form is 2 3/4.
Hope I helped:D
The answer 112 lmk if ya need an explanation