1) Integral of bound C of function x*e^y ds; C is the line segment from (-1,2) to (1,1).(adsbygoogle = window.adsbygoogle || []).push({});

How do i get the bound and the x and y in parameter form?

Show me plz!!! I need to learn!!

2)A wire w/ constante density has the sahpe of the helix x=a*cos(t), y=a*sin(t), z=bt, 0<=t<=3 pi. Find its mass a center of mass

For this one, is the function = k, for which k is any constant??? and then do the integral from 0 to 3 pi??

**mass = integral from 0 to 3 pi, of k*sqrt[ -a^2*sin^2(t) +a^2*cos^2(t)+b^2] dt ??

Thanks so much

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# Calc3-line integral

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