# Maths

posted by .

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

• Maths -

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?

## Similar Questions

1. ### Calculus

Solve these indefinite and definite integrals. [integration sign] 4j-5j^3 dj I got 2j^2 - 5/4j^4... is this my final answer?
2. ### Math

Evaluate the following indefinite integrals. ∫4e^6x dx ∫radical8x^8 raised to the third power dx
3. ### Calculus

"Evaluate the following indefinite integrals: "S" (3x^2 -2)/(x^3 - 2x + 1)^3 dx" We're practicing the substitution rule, and I know how to do it, but I don't know what/how to substitute in this question. btw: "S" is the integral sign.
4. ### Maths

what is the answer to this question? Indefinite Integrals fct) = 14 sin (7) + 5e ^ - 15t
5. ### calculus

evaluate the following indefinite integrals by substitution & check the result by differentiation. ∫(sin2x)^2 cos2xdx
6. ### Math

Evaluate the given indefinite integrals. ∫ (x+2)(2x+3)^1/2
7. ### Math

Evaluate the following indefinite integrals. Can you show all the steps please! a) ∫xe^x^2+10 dx b) ∫x-2/x-4 dx
8. ### Math

Evaluate the following indefinite integrals. Show all steps please A) ∫xe^x^2+10 dx b) ∫(1/2x+x)(ln(x)+x^2)^10 dx
9. ### Indefinite Integrals

find the indefinite integral of (1/x)*(e^(-2log[ 3,x])) dx where 3 is base of the log i cannot even figure out where to start :( please help. thank you
10. ### Calculus indefinite integrals

Evaluate the following indefinite integrals using substitution a) ∫ xsqrt(x^2-7) dx b) ∫ x^(2/3)(1/5x^(5/3)+2)^4 dx

More Similar Questions