Please help with the Algebra in finding the dervitives of these two parametric eqns

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.

Re: Please help with the Algebra in finding the dervitives of these two parametric eq

Hello, skinsdomination09!

The algebra is not hard.

I wish you had shown your work.

We have: .

Therefore: .