Answer Happy • 12. r(t) = (cost + t sin t)i + (sin t - t cost)j, 2 ≤ts = # 13. r(t) = (e' cos t)i + (e sin t)j + ek, -In4 ≤t≤0

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12. r(t) = (cost + t sin t)i + (sin t - t cost)j, 2 ≤ts = # 13. r(t) = (e' cos t)i + (e sin t)j + ek, -In4 ≤t≤0

Posted: Tue Jun 07, 2022 7:00 am

by answerhappygod

: 12 R T Cost T Sin T I Sin T T Cost J 2 Ts 13 R T E Cos T I E Sin T J Ek In4 T 0 1 (34.82 KiB) Viewed 21 times

12. r(t) = (cost + t sin t)i + (sin t - t cost)j, 2 ≤ts = # 13. r(t) = (e' cos t)i + (e sin t)j + ek, -In4 ≤t≤0