Please send me a help. Please show all your work and highlight the answers. Thank you!

P.S. The answers is indicated, so plz check it.

Problem 4: Given a helix, FIR) = 3 ms t 3+ 3 sin tj' + 20th, do the following: (a) Find the unit tangent vector fand unit normal vector i"? to when t = E. (Ans: g) =(i+j+2o), 5\"?) = 233+? (b) Find the line that goes through the point at t = if: and is tangent to the helix (c) Find the plane that goes through the point at t = Eand is normal to the unit normal vector A N