### Home > CALC > Chapter 11 > Lesson 11.3.2 > Problem 11-109

11-109.

No calculator! A particle moves in the plane so that at any time *t*, 0 ≤ *t* ≤ 1, its position is given*x* = *e* ^{8}* ^{t }*− 2

*t*and

*y*=

*e*

^{4}

*. Find its velocity and speed when*

^{t}*t*=