a. (2t^-3, -2t^-3), at t=3--->(2/27, -2/27)

b. find the integral=(2,6)+(t+1/t , 2t-1/t) | 1 to 3=(10/3, 32/3)

c. (2+1/t^2)/(2+1/t^2)=8, t=sqrt(3/2)

d. the slope is 2

Thank you! It took me a while to just understand it,and you can do it so fast! This is amazing!

no problem. Let me know if you have further questions

Thanks!! I have other 2 questions, can I still ask you?

yeah, you should post them and I'll answer

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