please answer all 3 questions thanks

1. [-/0.69 Points] DETAILS SCALCET9 12.2.004. MY NOTES ASK YOUR TEACHER (2) 28 + 80 (C) DO - AB (0) DC + CA + AB Need Help? Read it 2. [-/0.69 Points] DETAILS SCALCET9 12.2.042. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (2) Find the unit vectors that are parallel to the tangent line to the curvey = 8 sinja) at the paint ( 15 4) smaller i-component anger i-component Find the unit vectors that are perpendicular to the tangent line smaller i-component larger i-com patient (c) Sketch the curve y - 8 sin() and the vectors in parts (el and (bij all starting at (). O Need Help? Read it 3. [-/0.69 Points] DETAILS SCALCET9 12.3.037. MY NOTES ASK YOUR TEACHER (ccq. where e> 0 coster) - cosly) . Need Help? Read ! Watch It