next semester I will be taking a class that requires a decent bit of calculus, but I am a bit out of practice because I had the bright idea to get my calculus classes done when I first started college and that was my last real math class was a while ago

a friend gave me their review homework so im doing that to refresh myself

any help, answers, or just pointing me in the right direction would be greatly appreciated

a. I know how to do

b. I feel like I should know how to do but its not coming to mind

c. I don't think was even covered when I took calc

d. having "e" and "x" in the exponent always messed me us so I need help with that

e. for that one I just need to expand and integrate right?

f. same as d

g. I vaguely remember limits being simple but I don't have an idea of where to start

h. factor numerator, divide by denominator

i. I don't remember what this is called, but from i1 to i4 I just substitute the values into Xi and sum it up right?

j integration, but I remember not liking integration with a numerator and denominator so I might need a bit of refreshing

a friend gave me their review homework so im doing that to refresh myself

any help, answers, or just pointing me in the right direction would be greatly appreciated

a. I know how to do

b. I feel like I should know how to do but its not coming to mind

c. I don't think was even covered when I took calc

d. having "e" and "x" in the exponent always messed me us so I need help with that

e. for that one I just need to expand and integrate right?

f. same as d

g. I vaguely remember limits being simple but I don't have an idea of where to start

h. factor numerator, divide by denominator

i. I don't remember what this is called, but from i1 to i4 I just substitute the values into Xi and sum it up right?

j integration, but I remember not liking integration with a numerator and denominator so I might need a bit of refreshing