Posted by **Erica** on Monday, April 25, 2011 at 7:22am.

A particle moves along a path described by x=cosłt and y=sinłt. The distance that the particle travels along the path from t=0 to t=π/2 is...

Thank you!

- Calc -
**Reiny**, Monday, April 25, 2011 at 7:45am
if t=0

cos^3 0 = 1 , sin^3 0 = 0

thus position point is (1,0)

if t=π/2

cos^3 π/2 = 0 , sin^3 π/2 = 1

thus position point is (0,1)

Use your distance between 2 points formula to determine the distance between those two points

You should get √2

- Calc -
**Anonymous**, Wednesday, March 20, 2013 at 8:03pm
0.75

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