The algebra is not hard.
I wish you had shown your work.
We have: .
5) x = e^√t y= t - ln(tē) Correct Answer : 2√t(1-(2/t))/(e^√t)
8) x = 2sin2t y = 2 sint Correct Answer: cost/2cos2t *note I see the trig identitiy sin2t = 2cos*sin but I don't see how it helps
I get the concept that you have to put the derivitive of y over x to get the parametric derivitive but I just can't get the alrebra to work.