# Thread: base integrations / evaluations (calc2)

1. ## base integrations / evaluations (calc2)

Can someone please tell me if I am doing these right?

(Just finding the anti-derivative)
1. http://www.codecogs.com/eq.latex?\int_{}^{}\sin\left(8z-5\%20\right)
My answer: -cos (4z^2-5z) (not sure if I have to follow the chain rule in this or not?) If not I think this is right.

(Evaluation)
2. http://www.codecogs.com/eq.latex?\int_{1}^{0}3x^{2}+x-5

When I evaluated this I had
-1 + -1/2 + 5

(Evaluation)
3. http://www.codecogs.com/eq.latex?\int_{-\sqrt[]{3}}^{\sqrt[]{3}}(t+1)(t^{2}+4)
My anti-derivative: 1/4t^4 + 1/3t^3 + 2t^2 + 4t

(Evaluation)
4. http://www.codecogs.com/eq.latex?\int_{1/2}^{1}(1/u^{3}%20-%201/u^{4})
Antiderivative: -1/2v^-2 - -1/3v^-3

Am I doing these right at all?

2. Use preview before you post. I can't read it.

3. Originally Posted by joseph_
Can someone please tell me if I am doing these right?

(Just finding the anti-derivative)
1. $\int_{}^{}\sin\left(8z-5\ \right)$
My answer: -cos (4z^2-5z) (not sure if I have to follow the chain rule in this or not?) If not I think this is right.

(Evaluation)
2. $\int_{1}^{0}3x^{2}+x-5$

When I evaluated this I had
-1 + -1/2 + 5

(Evaluation)
3. $\int_{-\sqrt[]{3}}^{\sqrt[]{3}}(t+1)(t^{2}+4)$
4. $\int_{1/2}^{1}(1/u^{3} - 1/u^{4})$