Maths
posted by Alex on .
What is the answer for these questions:
1) Indefinite Integrals gcx) = (8 + 39x ^ 3) / x
2) Indefinite Integrals hcu) = sin ^2 (1/8 u)
3) Evaluate x ( 8  5 x ^2) dx
Thank you

1) What does the gcx mean?
Treat the integrand as 8/x + 39 x^2
The indefinite integral of that is
8 lnx +13 x^3
2) What does the hcu mean?
3) What are the upper and lower limits of x?